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evalkit_tf437/lib/python3.10/site-packages/fontTools/svgLib/path/parser.py

@@ -0,0 +1,322 @@
+# SVG Path specification parser.
+# This is an adaptation from 'svg.path' by Lennart Regebro (@regebro),
+# modified so that the parser takes a FontTools Pen object instead of
+# returning a list of svg.path Path objects.
+# The original code can be found at:
+# https://github.com/regebro/svg.path/blob/4f9b6e3/src/svg/path/parser.py
+# Copyright (c) 2013-2014 Lennart Regebro
+# License: MIT
+
+from .arc import EllipticalArc
+import re
+
+
+COMMANDS = set("MmZzLlHhVvCcSsQqTtAa")
+ARC_COMMANDS = set("Aa")
+UPPERCASE = set("MZLHVCSQTA")
+
+COMMAND_RE = re.compile("([MmZzLlHhVvCcSsQqTtAa])")
+
+# https://www.w3.org/TR/css-syntax-3/#number-token-diagram
+#   but -6.e-5 will be tokenized as "-6" then "-5" and confuse parsing
+FLOAT_RE = re.compile(
+    r"[-+]?"  # optional sign
+    r"(?:"
+    r"(?:0|[1-9][0-9]*)(?:\.[0-9]+)?(?:[eE][-+]?[0-9]+)?"  # int/float
+    r"|"
+    r"(?:\.[0-9]+(?:[eE][-+]?[0-9]+)?)"  # float with leading dot (e.g. '.42')
+    r")"
+)
+BOOL_RE = re.compile("^[01]")
+SEPARATOR_RE = re.compile(f"[, \t]")
+
+
+def _tokenize_path(pathdef):
+    arc_cmd = None
+    for x in COMMAND_RE.split(pathdef):
+        if x in COMMANDS:
+            arc_cmd = x if x in ARC_COMMANDS else None
+            yield x
+            continue
+
+        if arc_cmd:
+            try:
+                yield from _tokenize_arc_arguments(x)
+            except ValueError as e:
+                raise ValueError(f"Invalid arc command: '{arc_cmd}{x}'") from e
+        else:
+            for token in FLOAT_RE.findall(x):
+                yield token
+
+
+ARC_ARGUMENT_TYPES = (
+    ("rx", FLOAT_RE),
+    ("ry", FLOAT_RE),
+    ("x-axis-rotation", FLOAT_RE),
+    ("large-arc-flag", BOOL_RE),
+    ("sweep-flag", BOOL_RE),
+    ("x", FLOAT_RE),
+    ("y", FLOAT_RE),
+)
+
+
+def _tokenize_arc_arguments(arcdef):
+    raw_args = [s for s in SEPARATOR_RE.split(arcdef) if s]
+    if not raw_args:
+        raise ValueError(f"Not enough arguments: '{arcdef}'")
+    raw_args.reverse()
+
+    i = 0
+    while raw_args:
+        arg = raw_args.pop()
+
+        name, pattern = ARC_ARGUMENT_TYPES[i]
+        match = pattern.search(arg)
+        if not match:
+            raise ValueError(f"Invalid argument for '{name}' parameter: {arg!r}")
+
+        j, k = match.span()
+        yield arg[j:k]
+        arg = arg[k:]
+
+        if arg:
+            raw_args.append(arg)
+
+        # wrap around every 7 consecutive arguments
+        if i == 6:
+            i = 0
+        else:
+            i += 1
+
+    if i != 0:
+        raise ValueError(f"Not enough arguments: '{arcdef}'")
+
+
+def parse_path(pathdef, pen, current_pos=(0, 0), arc_class=EllipticalArc):
+    """Parse SVG path definition (i.e. "d" attribute of <path> elements)
+    and call a 'pen' object's moveTo, lineTo, curveTo, qCurveTo and closePath
+    methods.
+
+    If 'current_pos' (2-float tuple) is provided, the initial moveTo will
+    be relative to that instead being absolute.
+
+    If the pen has an "arcTo" method, it is called with the original values
+    of the elliptical arc curve commands:
+
+    .. code-block::
+
+        pen.arcTo(rx, ry, rotation, arc_large, arc_sweep, (x, y))
+
+    Otherwise, the arcs are approximated by series of cubic Bezier segments
+    ("curveTo"), one every 90 degrees.
+    """
+    # In the SVG specs, initial movetos are absolute, even if
+    # specified as 'm'. This is the default behavior here as well.
+    # But if you pass in a current_pos variable, the initial moveto
+    # will be relative to that current_pos. This is useful.
+    current_pos = complex(*current_pos)
+
+    elements = list(_tokenize_path(pathdef))
+    # Reverse for easy use of .pop()
+    elements.reverse()
+
+    start_pos = None
+    command = None
+    last_control = None
+
+    have_arcTo = hasattr(pen, "arcTo")
+
+    while elements:
+        if elements[-1] in COMMANDS:
+            # New command.
+            last_command = command  # Used by S and T
+            command = elements.pop()
+            absolute = command in UPPERCASE
+            command = command.upper()
+        else:
+            # If this element starts with numbers, it is an implicit command
+            # and we don't change the command. Check that it's allowed:
+            if command is None:
+                raise ValueError(
+                    "Unallowed implicit command in %s, position %s"
+                    % (pathdef, len(pathdef.split()) - len(elements))
+                )
+            last_command = command  # Used by S and T
+
+        if command == "M":
+            # Moveto command.
+            x = elements.pop()
+            y = elements.pop()
+            pos = float(x) + float(y) * 1j
+            if absolute:
+                current_pos = pos
+            else:
+                current_pos += pos
+
+            # M is not preceded by Z; it's an open subpath
+            if start_pos is not None:
+                pen.endPath()
+
+            pen.moveTo((current_pos.real, current_pos.imag))
+
+            # when M is called, reset start_pos
+            # This behavior of Z is defined in svg spec:
+            # http://www.w3.org/TR/SVG/paths.html#PathDataClosePathCommand
+            start_pos = current_pos
+
+            # Implicit moveto commands are treated as lineto commands.
+            # So we set command to lineto here, in case there are
+            # further implicit commands after this moveto.
+            command = "L"
+
+        elif command == "Z":
+            # Close path
+            if current_pos != start_pos:
+                pen.lineTo((start_pos.real, start_pos.imag))
+            pen.closePath()
+            current_pos = start_pos
+            start_pos = None
+            command = None  # You can't have implicit commands after closing.
+
+        elif command == "L":
+            x = elements.pop()
+            y = elements.pop()
+            pos = float(x) + float(y) * 1j
+            if not absolute:
+                pos += current_pos
+            pen.lineTo((pos.real, pos.imag))
+            current_pos = pos
+
+        elif command == "H":
+            x = elements.pop()
+            pos = float(x) + current_pos.imag * 1j
+            if not absolute:
+                pos += current_pos.real
+            pen.lineTo((pos.real, pos.imag))
+            current_pos = pos
+
+        elif command == "V":
+            y = elements.pop()
+            pos = current_pos.real + float(y) * 1j
+            if not absolute:
+                pos += current_pos.imag * 1j
+            pen.lineTo((pos.real, pos.imag))
+            current_pos = pos
+
+        elif command == "C":
+            control1 = float(elements.pop()) + float(elements.pop()) * 1j
+            control2 = float(elements.pop()) + float(elements.pop()) * 1j
+            end = float(elements.pop()) + float(elements.pop()) * 1j
+
+            if not absolute:
+                control1 += current_pos
+                control2 += current_pos
+                end += current_pos
+
+            pen.curveTo(
+                (control1.real, control1.imag),
+                (control2.real, control2.imag),
+                (end.real, end.imag),
+            )
+            current_pos = end
+            last_control = control2
+
+        elif command == "S":
+            # Smooth curve. First control point is the "reflection" of
+            # the second control point in the previous path.
+
+            if last_command not in "CS":
+                # If there is no previous command or if the previous command
+                # was not an C, c, S or s, assume the first control point is
+                # coincident with the current point.
+                control1 = current_pos
+            else:
+                # The first control point is assumed to be the reflection of
+                # the second control point on the previous command relative
+                # to the current point.
+                control1 = current_pos + current_pos - last_control
+
+            control2 = float(elements.pop()) + float(elements.pop()) * 1j
+            end = float(elements.pop()) + float(elements.pop()) * 1j
+
+            if not absolute:
+                control2 += current_pos
+                end += current_pos
+
+            pen.curveTo(
+                (control1.real, control1.imag),
+                (control2.real, control2.imag),
+                (end.real, end.imag),
+            )
+            current_pos = end
+            last_control = control2
+
+        elif command == "Q":
+            control = float(elements.pop()) + float(elements.pop()) * 1j
+            end = float(elements.pop()) + float(elements.pop()) * 1j
+
+            if not absolute:
+                control += current_pos
+                end += current_pos
+
+            pen.qCurveTo((control.real, control.imag), (end.real, end.imag))
+            current_pos = end
+            last_control = control
+
+        elif command == "T":
+            # Smooth curve. Control point is the "reflection" of
+            # the second control point in the previous path.
+
+            if last_command not in "QT":
+                # If there is no previous command or if the previous command
+                # was not an Q, q, T or t, assume the first control point is
+                # coincident with the current point.
+                control = current_pos
+            else:
+                # The control point is assumed to be the reflection of
+                # the control point on the previous command relative
+                # to the current point.
+                control = current_pos + current_pos - last_control
+
+            end = float(elements.pop()) + float(elements.pop()) * 1j
+
+            if not absolute:
+                end += current_pos
+
+            pen.qCurveTo((control.real, control.imag), (end.real, end.imag))
+            current_pos = end
+            last_control = control
+
+        elif command == "A":
+            rx = abs(float(elements.pop()))
+            ry = abs(float(elements.pop()))
+            rotation = float(elements.pop())
+            arc_large = bool(int(elements.pop()))
+            arc_sweep = bool(int(elements.pop()))
+            end = float(elements.pop()) + float(elements.pop()) * 1j
+
+            if not absolute:
+                end += current_pos
+
+            # if the pen supports arcs, pass the values unchanged, otherwise
+            # approximate the arc with a series of cubic bezier curves
+            if have_arcTo:
+                pen.arcTo(
+                    rx,
+                    ry,
+                    rotation,
+                    arc_large,
+                    arc_sweep,
+                    (end.real, end.imag),
+                )
+            else:
+                arc = arc_class(
+                    current_pos, rx, ry, rotation, arc_large, arc_sweep, end
+                )
+                arc.draw(pen)
+
+            current_pos = end
+
+    # no final Z command, it's an open path
+    if start_pos is not None:
+        pen.endPath()

evalkit_tf437/lib/python3.10/site-packages/fontTools/svgLib/path/shapes.py

@@ -0,0 +1,183 @@
+import re
+
+
+def _prefer_non_zero(*args):
+    for arg in args:
+        if arg != 0:
+            return arg
+    return 0.0
+
+
+def _ntos(n):
+    # %f likes to add unnecessary 0's, %g isn't consistent about # decimals
+    return ("%.3f" % n).rstrip("0").rstrip(".")
+
+
+def _strip_xml_ns(tag):
+    # ElementTree API doesn't provide a way to ignore XML namespaces in tags
+    # so we here strip them ourselves: cf. https://bugs.python.org/issue18304
+    return tag.split("}", 1)[1] if "}" in tag else tag
+
+
+def _transform(raw_value):
+    # TODO assumes a 'matrix' transform.
+    # No other transform functions are supported at the moment.
+    # https://developer.mozilla.org/en-US/docs/Web/SVG/Attribute/transform
+    # start simple: if you aren't exactly matrix(...) then no love
+    match = re.match(r"matrix\((.*)\)", raw_value)
+    if not match:
+        raise NotImplementedError
+    matrix = tuple(float(p) for p in re.split(r"\s+|,", match.group(1)))
+    if len(matrix) != 6:
+        raise ValueError("wrong # of terms in %s" % raw_value)
+    return matrix
+
+
+class PathBuilder(object):
+    def __init__(self):
+        self.paths = []
+        self.transforms = []
+
+    def _start_path(self, initial_path=""):
+        self.paths.append(initial_path)
+        self.transforms.append(None)
+
+    def _end_path(self):
+        self._add("z")
+
+    def _add(self, path_snippet):
+        path = self.paths[-1]
+        if path:
+            path += " " + path_snippet
+        else:
+            path = path_snippet
+        self.paths[-1] = path
+
+    def _move(self, c, x, y):
+        self._add("%s%s,%s" % (c, _ntos(x), _ntos(y)))
+
+    def M(self, x, y):
+        self._move("M", x, y)
+
+    def m(self, x, y):
+        self._move("m", x, y)
+
+    def _arc(self, c, rx, ry, x, y, large_arc):
+        self._add(
+            "%s%s,%s 0 %d 1 %s,%s"
+            % (c, _ntos(rx), _ntos(ry), large_arc, _ntos(x), _ntos(y))
+        )
+
+    def A(self, rx, ry, x, y, large_arc=0):
+        self._arc("A", rx, ry, x, y, large_arc)
+
+    def a(self, rx, ry, x, y, large_arc=0):
+        self._arc("a", rx, ry, x, y, large_arc)
+
+    def _vhline(self, c, x):
+        self._add("%s%s" % (c, _ntos(x)))
+
+    def H(self, x):
+        self._vhline("H", x)
+
+    def h(self, x):
+        self._vhline("h", x)
+
+    def V(self, y):
+        self._vhline("V", y)
+
+    def v(self, y):
+        self._vhline("v", y)
+
+    def _line(self, c, x, y):
+        self._add("%s%s,%s" % (c, _ntos(x), _ntos(y)))
+
+    def L(self, x, y):
+        self._line("L", x, y)
+
+    def l(self, x, y):
+        self._line("l", x, y)
+
+    def _parse_line(self, line):
+        x1 = float(line.attrib.get("x1", 0))
+        y1 = float(line.attrib.get("y1", 0))
+        x2 = float(line.attrib.get("x2", 0))
+        y2 = float(line.attrib.get("y2", 0))
+
+        self._start_path()
+        self.M(x1, y1)
+        self.L(x2, y2)
+
+    def _parse_rect(self, rect):
+        x = float(rect.attrib.get("x", 0))
+        y = float(rect.attrib.get("y", 0))
+        w = float(rect.attrib.get("width"))
+        h = float(rect.attrib.get("height"))
+        rx = float(rect.attrib.get("rx", 0))
+        ry = float(rect.attrib.get("ry", 0))
+
+        rx = _prefer_non_zero(rx, ry)
+        ry = _prefer_non_zero(ry, rx)
+        # TODO there are more rules for adjusting rx, ry
+
+        self._start_path()
+        self.M(x + rx, y)
+        self.H(x + w - rx)
+        if rx > 0:
+            self.A(rx, ry, x + w, y + ry)
+        self.V(y + h - ry)
+        if rx > 0:
+            self.A(rx, ry, x + w - rx, y + h)
+        self.H(x + rx)
+        if rx > 0:
+            self.A(rx, ry, x, y + h - ry)
+        self.V(y + ry)
+        if rx > 0:
+            self.A(rx, ry, x + rx, y)
+        self._end_path()
+
+    def _parse_path(self, path):
+        if "d" in path.attrib:
+            self._start_path(initial_path=path.attrib["d"])
+
+    def _parse_polygon(self, poly):
+        if "points" in poly.attrib:
+            self._start_path("M" + poly.attrib["points"])
+            self._end_path()
+
+    def _parse_polyline(self, poly):
+        if "points" in poly.attrib:
+            self._start_path("M" + poly.attrib["points"])
+
+    def _parse_circle(self, circle):
+        cx = float(circle.attrib.get("cx", 0))
+        cy = float(circle.attrib.get("cy", 0))
+        r = float(circle.attrib.get("r"))
+
+        # arc doesn't seem to like being a complete shape, draw two halves
+        self._start_path()
+        self.M(cx - r, cy)
+        self.A(r, r, cx + r, cy, large_arc=1)
+        self.A(r, r, cx - r, cy, large_arc=1)
+
+    def _parse_ellipse(self, ellipse):
+        cx = float(ellipse.attrib.get("cx", 0))
+        cy = float(ellipse.attrib.get("cy", 0))
+        rx = float(ellipse.attrib.get("rx"))
+        ry = float(ellipse.attrib.get("ry"))
+
+        # arc doesn't seem to like being a complete shape, draw two halves
+        self._start_path()
+        self.M(cx - rx, cy)
+        self.A(rx, ry, cx + rx, cy, large_arc=1)
+        self.A(rx, ry, cx - rx, cy, large_arc=1)
+
+    def add_path_from_element(self, el):
+        tag = _strip_xml_ns(el.tag)
+        parse_fn = getattr(self, "_parse_%s" % tag.lower(), None)
+        if not callable(parse_fn):
+            return False
+        parse_fn(el)
+        if "transform" in el.attrib:
+            self.transforms[-1] = _transform(el.attrib["transform"])
+        return True

evalkit_tf437/lib/python3.10/site-packages/gradio/templates/node/build/client/_app/immutable/chunks/Index.DdudhzXc.js.gz

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:add155f13f945d752e981d49373bb7956903c347e5a955ef304c84e7db4ac593
+size 30137

evalkit_tf437/lib/python3.10/site-packages/gradio/templates/node/build/client/_app/immutable/chunks/r.H5fUPB2b.js.gz

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:5820b440acd4cdf1daf3212dcc23e98ddb5f3c37f29bfd378da52244fac569e1
+size 1755

evalkit_tf437/lib/python3.10/site-packages/httpx/__init__.py

@@ -0,0 +1,105 @@
+from .__version__ import __description__, __title__, __version__
+from ._api import *
+from ._auth import *
+from ._client import *
+from ._config import *
+from ._content import *
+from ._exceptions import *
+from ._models import *
+from ._status_codes import *
+from ._transports import *
+from ._types import *
+from ._urls import *
+
+try:
+    from ._main import main
+except ImportError:  # pragma: no cover
+
+    def main() -> None:  # type: ignore
+        import sys
+
+        print(
+            "The httpx command line client could not run because the required "
+            "dependencies were not installed.\nMake sure you've installed "
+            "everything with: pip install 'httpx[cli]'"
+        )
+        sys.exit(1)
+
+
+__all__ = [
+    "__description__",
+    "__title__",
+    "__version__",
+    "ASGITransport",
+    "AsyncBaseTransport",
+    "AsyncByteStream",
+    "AsyncClient",
+    "AsyncHTTPTransport",
+    "Auth",
+    "BaseTransport",
+    "BasicAuth",
+    "ByteStream",
+    "Client",
+    "CloseError",
+    "codes",
+    "ConnectError",
+    "ConnectTimeout",
+    "CookieConflict",
+    "Cookies",
+    "create_ssl_context",
+    "DecodingError",
+    "delete",
+    "DigestAuth",
+    "get",
+    "head",
+    "Headers",
+    "HTTPError",
+    "HTTPStatusError",
+    "HTTPTransport",
+    "InvalidURL",
+    "Limits",
+    "LocalProtocolError",
+    "main",
+    "MockTransport",
+    "NetRCAuth",
+    "NetworkError",
+    "options",
+    "patch",
+    "PoolTimeout",
+    "post",
+    "ProtocolError",
+    "Proxy",
+    "ProxyError",
+    "put",
+    "QueryParams",
+    "ReadError",
+    "ReadTimeout",
+    "RemoteProtocolError",
+    "request",
+    "Request",
+    "RequestError",
+    "RequestNotRead",
+    "Response",
+    "ResponseNotRead",
+    "stream",
+    "StreamClosed",
+    "StreamConsumed",
+    "StreamError",
+    "SyncByteStream",
+    "Timeout",
+    "TimeoutException",
+    "TooManyRedirects",
+    "TransportError",
+    "UnsupportedProtocol",
+    "URL",
+    "USE_CLIENT_DEFAULT",
+    "WriteError",
+    "WriteTimeout",
+    "WSGITransport",
+]
+
+
+__locals = locals()
+for __name in __all__:
+    if not __name.startswith("__"):
+        setattr(__locals[__name], "__module__", "httpx")  # noqa

evalkit_tf437/lib/python3.10/site-packages/httpx/_client.py

@@ -0,0 +1,2065 @@
+from __future__ import annotations
+
+import datetime
+import enum
+import logging
+import typing
+import warnings
+from contextlib import asynccontextmanager, contextmanager
+from types import TracebackType
+
+from .__version__ import __version__
+from ._auth import Auth, BasicAuth, FunctionAuth
+from ._config import (
+    DEFAULT_LIMITS,
+    DEFAULT_MAX_REDIRECTS,
+    DEFAULT_TIMEOUT_CONFIG,
+    Limits,
+    Proxy,
+    Timeout,
+)
+from ._decoders import SUPPORTED_DECODERS
+from ._exceptions import (
+    InvalidURL,
+    RemoteProtocolError,
+    TooManyRedirects,
+    request_context,
+)
+from ._models import Cookies, Headers, Request, Response
+from ._status_codes import codes
+from ._transports.asgi import ASGITransport
+from ._transports.base import AsyncBaseTransport, BaseTransport
+from ._transports.default import AsyncHTTPTransport, HTTPTransport
+from ._transports.wsgi import WSGITransport
+from ._types import (
+    AsyncByteStream,
+    AuthTypes,
+    CertTypes,
+    CookieTypes,
+    HeaderTypes,
+    ProxiesTypes,
+    ProxyTypes,
+    QueryParamTypes,
+    RequestContent,
+    RequestData,
+    RequestExtensions,
+    RequestFiles,
+    SyncByteStream,
+    TimeoutTypes,
+    VerifyTypes,
+)
+from ._urls import URL, QueryParams
+from ._utils import (
+    Timer,
+    URLPattern,
+    get_environment_proxies,
+    is_https_redirect,
+    same_origin,
+)
+
+__all__ = ["USE_CLIENT_DEFAULT", "AsyncClient", "Client"]
+
+# The type annotation for @classmethod and context managers here follows PEP 484
+# https://www.python.org/dev/peps/pep-0484/#annotating-instance-and-class-methods
+T = typing.TypeVar("T", bound="Client")
+U = typing.TypeVar("U", bound="AsyncClient")
+
+
+class UseClientDefault:
+    """
+    For some parameters such as `auth=...` and `timeout=...` we need to be able
+    to indicate the default "unset" state, in a way that is distinctly different
+    to using `None`.
+
+    The default "unset" state indicates that whatever default is set on the
+    client should be used. This is different to setting `None`, which
+    explicitly disables the parameter, possibly overriding a client default.
+
+    For example we use `timeout=USE_CLIENT_DEFAULT` in the `request()` signature.
+    Omitting the `timeout` parameter will send a request using whatever default
+    timeout has been configured on the client. Including `timeout=None` will
+    ensure no timeout is used.
+
+    Note that user code shouldn't need to use the `USE_CLIENT_DEFAULT` constant,
+    but it is used internally when a parameter is not included.
+    """
+
+
+USE_CLIENT_DEFAULT = UseClientDefault()
+
+
+logger = logging.getLogger("httpx")
+
+USER_AGENT = f"python-httpx/{__version__}"
+ACCEPT_ENCODING = ", ".join(
+    [key for key in SUPPORTED_DECODERS.keys() if key != "identity"]
+)
+
+
+class ClientState(enum.Enum):
+    # UNOPENED:
+    #   The client has been instantiated, but has not been used to send a request,
+    #   or been opened by entering the context of a `with` block.
+    UNOPENED = 1
+    # OPENED:
+    #   The client has either sent a request, or is within a `with` block.
+    OPENED = 2
+    # CLOSED:
+    #   The client has either exited the `with` block, or `close()` has
+    #   been called explicitly.
+    CLOSED = 3
+
+
+class BoundSyncStream(SyncByteStream):
+    """
+    A byte stream that is bound to a given response instance, and that
+    ensures the `response.elapsed` is set once the response is closed.
+    """
+
+    def __init__(
+        self, stream: SyncByteStream, response: Response, timer: Timer
+    ) -> None:
+        self._stream = stream
+        self._response = response
+        self._timer = timer
+
+    def __iter__(self) -> typing.Iterator[bytes]:
+        for chunk in self._stream:
+            yield chunk
+
+    def close(self) -> None:
+        seconds = self._timer.sync_elapsed()
+        self._response.elapsed = datetime.timedelta(seconds=seconds)
+        self._stream.close()
+
+
+class BoundAsyncStream(AsyncByteStream):
+    """
+    An async byte stream that is bound to a given response instance, and that
+    ensures the `response.elapsed` is set once the response is closed.
+    """
+
+    def __init__(
+        self, stream: AsyncByteStream, response: Response, timer: Timer
+    ) -> None:
+        self._stream = stream
+        self._response = response
+        self._timer = timer
+
+    async def __aiter__(self) -> typing.AsyncIterator[bytes]:
+        async for chunk in self._stream:
+            yield chunk
+
+    async def aclose(self) -> None:
+        seconds = await self._timer.async_elapsed()
+        self._response.elapsed = datetime.timedelta(seconds=seconds)
+        await self._stream.aclose()
+
+
+EventHook = typing.Callable[..., typing.Any]
+
+
+class BaseClient:
+    def __init__(
+        self,
+        *,
+        auth: AuthTypes | None = None,
+        params: QueryParamTypes | None = None,
+        headers: HeaderTypes | None = None,
+        cookies: CookieTypes | None = None,
+        timeout: TimeoutTypes = DEFAULT_TIMEOUT_CONFIG,
+        follow_redirects: bool = False,
+        max_redirects: int = DEFAULT_MAX_REDIRECTS,
+        event_hooks: None | (typing.Mapping[str, list[EventHook]]) = None,
+        base_url: URL | str = "",
+        trust_env: bool = True,
+        default_encoding: str | typing.Callable[[bytes], str] = "utf-8",
+    ) -> None:
+        event_hooks = {} if event_hooks is None else event_hooks
+
+        self._base_url = self._enforce_trailing_slash(URL(base_url))
+
+        self._auth = self._build_auth(auth)
+        self._params = QueryParams(params)
+        self.headers = Headers(headers)
+        self._cookies = Cookies(cookies)
+        self._timeout = Timeout(timeout)
+        self.follow_redirects = follow_redirects
+        self.max_redirects = max_redirects
+        self._event_hooks = {
+            "request": list(event_hooks.get("request", [])),
+            "response": list(event_hooks.get("response", [])),
+        }
+        self._trust_env = trust_env
+        self._default_encoding = default_encoding
+        self._state = ClientState.UNOPENED
+
+    @property
+    def is_closed(self) -> bool:
+        """
+        Check if the client being closed
+        """
+        return self._state == ClientState.CLOSED
+
+    @property
+    def trust_env(self) -> bool:
+        return self._trust_env
+
+    def _enforce_trailing_slash(self, url: URL) -> URL:
+        if url.raw_path.endswith(b"/"):
+            return url
+        return url.copy_with(raw_path=url.raw_path + b"/")
+
+    def _get_proxy_map(
+        self, proxies: ProxiesTypes | None, allow_env_proxies: bool
+    ) -> dict[str, Proxy | None]:
+        if proxies is None:
+            if allow_env_proxies:
+                return {
+                    key: None if url is None else Proxy(url=url)
+                    for key, url in get_environment_proxies().items()
+                }
+            return {}
+        if isinstance(proxies, dict):
+            new_proxies = {}
+            for key, value in proxies.items():
+                proxy = Proxy(url=value) if isinstance(value, (str, URL)) else value
+                new_proxies[str(key)] = proxy
+            return new_proxies
+        else:
+            proxy = Proxy(url=proxies) if isinstance(proxies, (str, URL)) else proxies
+            return {"all://": proxy}
+
+    @property
+    def timeout(self) -> Timeout:
+        return self._timeout
+
+    @timeout.setter
+    def timeout(self, timeout: TimeoutTypes) -> None:
+        self._timeout = Timeout(timeout)
+
+    @property
+    def event_hooks(self) -> dict[str, list[EventHook]]:
+        return self._event_hooks
+
+    @event_hooks.setter
+    def event_hooks(self, event_hooks: dict[str, list[EventHook]]) -> None:
+        self._event_hooks = {
+            "request": list(event_hooks.get("request", [])),
+            "response": list(event_hooks.get("response", [])),
+        }
+
+    @property
+    def auth(self) -> Auth | None:
+        """
+        Authentication class used when none is passed at the request-level.
+
+        See also [Authentication][0].
+
+        [0]: /quickstart/#authentication
+        """
+        return self._auth
+
+    @auth.setter
+    def auth(self, auth: AuthTypes) -> None:
+        self._auth = self._build_auth(auth)
+
+    @property
+    def base_url(self) -> URL:
+        """
+        Base URL to use when sending requests with relative URLs.
+        """
+        return self._base_url
+
+    @base_url.setter
+    def base_url(self, url: URL | str) -> None:
+        self._base_url = self._enforce_trailing_slash(URL(url))
+
+    @property
+    def headers(self) -> Headers:
+        """
+        HTTP headers to include when sending requests.
+        """
+        return self._headers
+
+    @headers.setter
+    def headers(self, headers: HeaderTypes) -> None:
+        client_headers = Headers(
+            {
+                b"Accept": b"*/*",
+                b"Accept-Encoding": ACCEPT_ENCODING.encode("ascii"),
+                b"Connection": b"keep-alive",
+                b"User-Agent": USER_AGENT.encode("ascii"),
+            }
+        )
+        client_headers.update(headers)
+        self._headers = client_headers
+
+    @property
+    def cookies(self) -> Cookies:
+        """
+        Cookie values to include when sending requests.
+        """
+        return self._cookies
+
+    @cookies.setter
+    def cookies(self, cookies: CookieTypes) -> None:
+        self._cookies = Cookies(cookies)
+
+    @property
+    def params(self) -> QueryParams:
+        """
+        Query parameters to include in the URL when sending requests.
+        """
+        return self._params
+
+    @params.setter
+    def params(self, params: QueryParamTypes) -> None:
+        self._params = QueryParams(params)
+
+    def build_request(
+        self,
+        method: str,
+        url: URL | str,
+        *,
+        content: RequestContent | None = None,
+        data: RequestData | None = None,
+        files: RequestFiles | None = None,
+        json: typing.Any | None = None,
+        params: QueryParamTypes | None = None,
+        headers: HeaderTypes | None = None,
+        cookies: CookieTypes | None = None,
+        timeout: TimeoutTypes | UseClientDefault = USE_CLIENT_DEFAULT,
+        extensions: RequestExtensions | None = None,
+    ) -> Request:
+        """
+        Build and return a request instance.
+
+        * The `params`, `headers` and `cookies` arguments
+        are merged with any values set on the client.
+        * The `url` argument is merged with any `base_url` set on the client.
+
+        See also: [Request instances][0]
+
+        [0]: /advanced/clients/#request-instances
+        """
+        url = self._merge_url(url)
+        headers = self._merge_headers(headers)
+        cookies = self._merge_cookies(cookies)
+        params = self._merge_queryparams(params)
+        extensions = {} if extensions is None else extensions
+        if "timeout" not in extensions:
+            timeout = (
+                self.timeout
+                if isinstance(timeout, UseClientDefault)
+                else Timeout(timeout)
+            )
+            extensions = dict(**extensions, timeout=timeout.as_dict())
+        return Request(
+            method,
+            url,
+            content=content,
+            data=data,
+            files=files,
+            json=json,
+            params=params,
+            headers=headers,
+            cookies=cookies,
+            extensions=extensions,
+        )
+
+    def _merge_url(self, url: URL | str) -> URL:
+        """
+        Merge a URL argument together with any 'base_url' on the client,
+        to create the URL used for the outgoing request.
+        """
+        merge_url = URL(url)
+        if merge_url.is_relative_url:
+            # To merge URLs we always append to the base URL. To get this
+            # behaviour correct we always ensure the base URL ends in a '/'
+            # separator, and strip any leading '/' from the merge URL.
+            #
+            # So, eg...
+            #
+            # >>> client = Client(base_url="https://www.example.com/subpath")
+            # >>> client.base_url
+            # URL('https://www.example.com/subpath/')
+            # >>> client.build_request("GET", "/path").url
+            # URL('https://www.example.com/subpath/path')
+            merge_raw_path = self.base_url.raw_path + merge_url.raw_path.lstrip(b"/")
+            return self.base_url.copy_with(raw_path=merge_raw_path)
+        return merge_url
+
+    def _merge_cookies(self, cookies: CookieTypes | None = None) -> CookieTypes | None:
+        """
+        Merge a cookies argument together with any cookies on the client,
+        to create the cookies used for the outgoing request.
+        """
+        if cookies or self.cookies:
+            merged_cookies = Cookies(self.cookies)
+            merged_cookies.update(cookies)
+            return merged_cookies
+        return cookies
+
+    def _merge_headers(self, headers: HeaderTypes | None = None) -> HeaderTypes | None:
+        """
+        Merge a headers argument together with any headers on the client,
+        to create the headers used for the outgoing request.
+        """
+        merged_headers = Headers(self.headers)
+        merged_headers.update(headers)
+        return merged_headers
+
+    def _merge_queryparams(
+        self, params: QueryParamTypes | None = None
+    ) -> QueryParamTypes | None:
+        """
+        Merge a queryparams argument together with any queryparams on the client,
+        to create the queryparams used for the outgoing request.
+        """
+        if params or self.params:
+            merged_queryparams = QueryParams(self.params)
+            return merged_queryparams.merge(params)
+        return params
+
+    def _build_auth(self, auth: AuthTypes | None) -> Auth | None:
+        if auth is None:
+            return None
+        elif isinstance(auth, tuple):
+            return BasicAuth(username=auth[0], password=auth[1])
+        elif isinstance(auth, Auth):
+            return auth
+        elif callable(auth):
+            return FunctionAuth(func=auth)
+        else:
+            raise TypeError(f'Invalid "auth" argument: {auth!r}')
+
+    def _build_request_auth(
+        self,
+        request: Request,
+        auth: AuthTypes | UseClientDefault | None = USE_CLIENT_DEFAULT,
+    ) -> Auth:
+        auth = (
+            self._auth if isinstance(auth, UseClientDefault) else self._build_auth(auth)
+        )
+
+        if auth is not None:
+            return auth
+
+        username, password = request.url.username, request.url.password
+        if username or password:
+            return BasicAuth(username=username, password=password)
+
+        return Auth()
+
+    def _build_redirect_request(self, request: Request, response: Response) -> Request:
+        """
+        Given a request and a redirect response, return a new request that
+        should be used to effect the redirect.
+        """
+        method = self._redirect_method(request, response)
+        url = self._redirect_url(request, response)
+        headers = self._redirect_headers(request, url, method)
+        stream = self._redirect_stream(request, method)
+        cookies = Cookies(self.cookies)
+        return Request(
+            method=method,
+            url=url,
+            headers=headers,
+            cookies=cookies,
+            stream=stream,
+            extensions=request.extensions,
+        )
+
+    def _redirect_method(self, request: Request, response: Response) -> str:
+        """
+        When being redirected we may want to change the method of the request
+        based on certain specs or browser behavior.
+        """
+        method = request.method
+
+        # https://tools.ietf.org/html/rfc7231#section-6.4.4
+        if response.status_code == codes.SEE_OTHER and method != "HEAD":
+            method = "GET"
+
+        # Do what the browsers do, despite standards...
+        # Turn 302s into GETs.
+        if response.status_code == codes.FOUND and method != "HEAD":
+            method = "GET"
+
+        # If a POST is responded to with a 301, turn it into a GET.
+        # This bizarre behaviour is explained in 'requests' issue 1704.
+        if response.status_code == codes.MOVED_PERMANENTLY and method == "POST":
+            method = "GET"
+
+        return method
+
+    def _redirect_url(self, request: Request, response: Response) -> URL:
+        """
+        Return the URL for the redirect to follow.
+        """
+        location = response.headers["Location"]
+
+        try:
+            url = URL(location)
+        except InvalidURL as exc:
+            raise RemoteProtocolError(
+                f"Invalid URL in location header: {exc}.", request=request
+            ) from None
+
+        # Handle malformed 'Location' headers that are "absolute" form, have no host.
+        # See: https://github.com/encode/httpx/issues/771
+        if url.scheme and not url.host:
+            url = url.copy_with(host=request.url.host)
+
+        # Facilitate relative 'Location' headers, as allowed by RFC 7231.
+        # (e.g. '/path/to/resource' instead of 'http://domain.tld/path/to/resource')
+        if url.is_relative_url:
+            url = request.url.join(url)
+
+        # Attach previous fragment if needed (RFC 7231 7.1.2)
+        if request.url.fragment and not url.fragment:
+            url = url.copy_with(fragment=request.url.fragment)
+
+        return url
+
+    def _redirect_headers(self, request: Request, url: URL, method: str) -> Headers:
+        """
+        Return the headers that should be used for the redirect request.
+        """
+        headers = Headers(request.headers)
+
+        if not same_origin(url, request.url):
+            if not is_https_redirect(request.url, url):
+                # Strip Authorization headers when responses are redirected
+                # away from the origin. (Except for direct HTTP to HTTPS redirects.)
+                headers.pop("Authorization", None)
+
+            # Update the Host header.
+            headers["Host"] = url.netloc.decode("ascii")
+
+        if method != request.method and method == "GET":
+            # If we've switch to a 'GET' request, then strip any headers which
+            # are only relevant to the request body.
+            headers.pop("Content-Length", None)
+            headers.pop("Transfer-Encoding", None)
+
+        # We should use the client cookie store to determine any cookie header,
+        # rather than whatever was on the original outgoing request.
+        headers.pop("Cookie", None)
+
+        return headers
+
+    def _redirect_stream(
+        self, request: Request, method: str
+    ) -> SyncByteStream | AsyncByteStream | None:
+        """
+        Return the body that should be used for the redirect request.
+        """
+        if method != request.method and method == "GET":
+            return None
+
+        return request.stream
+
+    def _set_timeout(self, request: Request) -> None:
+        if "timeout" not in request.extensions:
+            timeout = (
+                self.timeout
+                if isinstance(self.timeout, UseClientDefault)
+                else Timeout(self.timeout)
+            )
+            request.extensions = dict(**request.extensions, timeout=timeout.as_dict())
+
+
+class Client(BaseClient):
+    """
+    An HTTP client, with connection pooling, HTTP/2, redirects, cookie persistence, etc.
+
+    It can be shared between threads.
+
+    Usage:
+
+    ```python
+    >>> client = httpx.Client()
+    >>> response = client.get('https://example.org')
+    ```
+
+    **Parameters:**
+
+    * **auth** - *(optional)* An authentication class to use when sending
+    requests.
+    * **params** - *(optional)* Query parameters to include in request URLs, as
+    a string, dictionary, or sequence of two-tuples.
+    * **headers** - *(optional)* Dictionary of HTTP headers to include when
+    sending requests.
+    * **cookies** - *(optional)* Dictionary of Cookie items to include when
+    sending requests.
+    * **verify** - *(optional)* SSL certificates (a.k.a CA bundle) used to
+    verify the identity of requested hosts. Either `True` (default CA bundle),
+    a path to an SSL certificate file, an `ssl.SSLContext`, or `False`
+    (which will disable verification).
+    * **cert** - *(optional)* An SSL certificate used by the requested host
+    to authenticate the client. Either a path to an SSL certificate file, or
+    two-tuple of (certificate file, key file), or a three-tuple of (certificate
+    file, key file, password).
+    * **http2** - *(optional)* A boolean indicating if HTTP/2 support should be
+    enabled. Defaults to `False`.
+    * **proxy** - *(optional)* A proxy URL where all the traffic should be routed.
+    * **proxies** - *(optional)* A dictionary mapping proxy keys to proxy
+    URLs.
+    * **timeout** - *(optional)* The timeout configuration to use when sending
+    requests.
+    * **limits** - *(optional)* The limits configuration to use.
+    * **max_redirects** - *(optional)* The maximum number of redirect responses
+    that should be followed.
+    * **base_url** - *(optional)* A URL to use as the base when building
+    request URLs.
+    * **transport** - *(optional)* A transport class to use for sending requests
+    over the network.
+    * **app** - *(optional)* An WSGI application to send requests to,
+    rather than sending actual network requests.
+    * **trust_env** - *(optional)* Enables or disables usage of environment
+    variables for configuration.
+    * **default_encoding** - *(optional)* The default encoding to use for decoding
+    response text, if no charset information is included in a response Content-Type
+    header. Set to a callable for automatic character set detection. Default: "utf-8".
+    """
+
+    def __init__(
+        self,
+        *,
+        auth: AuthTypes | None = None,
+        params: QueryParamTypes | None = None,
+        headers: HeaderTypes | None = None,
+        cookies: CookieTypes | None = None,
+        verify: VerifyTypes = True,
+        cert: CertTypes | None = None,
+        http1: bool = True,
+        http2: bool = False,
+        proxy: ProxyTypes | None = None,
+        proxies: ProxiesTypes | None = None,
+        mounts: None | (typing.Mapping[str, BaseTransport | None]) = None,
+        timeout: TimeoutTypes = DEFAULT_TIMEOUT_CONFIG,
+        follow_redirects: bool = False,
+        limits: Limits = DEFAULT_LIMITS,
+        max_redirects: int = DEFAULT_MAX_REDIRECTS,
+        event_hooks: None | (typing.Mapping[str, list[EventHook]]) = None,
+        base_url: URL | str = "",
+        transport: BaseTransport | None = None,
+        app: typing.Callable[..., typing.Any] | None = None,
+        trust_env: bool = True,
+        default_encoding: str | typing.Callable[[bytes], str] = "utf-8",
+    ) -> None:
+        super().__init__(
+            auth=auth,
+            params=params,
+            headers=headers,
+            cookies=cookies,
+            timeout=timeout,
+            follow_redirects=follow_redirects,
+            max_redirects=max_redirects,
+            event_hooks=event_hooks,
+            base_url=base_url,
+            trust_env=trust_env,
+            default_encoding=default_encoding,
+        )
+
+        if http2:
+            try:
+                import h2  # noqa
+            except ImportError:  # pragma: no cover
+                raise ImportError(
+                    "Using http2=True, but the 'h2' package is not installed. "
+                    "Make sure to install httpx using `pip install httpx[http2]`."
+                ) from None
+
+        if proxies:
+            message = (
+                "The 'proxies' argument is now deprecated."
+                " Use 'proxy' or 'mounts' instead."
+            )
+            warnings.warn(message, DeprecationWarning)
+            if proxy:
+                raise RuntimeError("Use either `proxy` or 'proxies', not both.")
+
+        if app:
+            message = (
+                "The 'app' shortcut is now deprecated."
+                " Use the explicit style 'transport=WSGITransport(app=...)' instead."
+            )
+            warnings.warn(message, DeprecationWarning)
+
+        allow_env_proxies = trust_env and app is None and transport is None
+        proxy_map = self._get_proxy_map(proxies or proxy, allow_env_proxies)
+
+        self._transport = self._init_transport(
+            verify=verify,
+            cert=cert,
+            http1=http1,
+            http2=http2,
+            limits=limits,
+            transport=transport,
+            app=app,
+            trust_env=trust_env,
+        )
+        self._mounts: dict[URLPattern, BaseTransport | None] = {
+            URLPattern(key): None
+            if proxy is None
+            else self._init_proxy_transport(
+                proxy,
+                verify=verify,
+                cert=cert,
+                http1=http1,
+                http2=http2,
+                limits=limits,
+                trust_env=trust_env,
+            )
+            for key, proxy in proxy_map.items()
+        }
+        if mounts is not None:
+            self._mounts.update(
+                {URLPattern(key): transport for key, transport in mounts.items()}
+            )
+
+        self._mounts = dict(sorted(self._mounts.items()))
+
+    def _init_transport(
+        self,
+        verify: VerifyTypes = True,
+        cert: CertTypes | None = None,
+        http1: bool = True,
+        http2: bool = False,
+        limits: Limits = DEFAULT_LIMITS,
+        transport: BaseTransport | None = None,
+        app: typing.Callable[..., typing.Any] | None = None,
+        trust_env: bool = True,
+    ) -> BaseTransport:
+        if transport is not None:
+            return transport
+
+        if app is not None:
+            return WSGITransport(app=app)
+
+        return HTTPTransport(
+            verify=verify,
+            cert=cert,
+            http1=http1,
+            http2=http2,
+            limits=limits,
+            trust_env=trust_env,
+        )
+
+    def _init_proxy_transport(
+        self,
+        proxy: Proxy,
+        verify: VerifyTypes = True,
+        cert: CertTypes | None = None,
+        http1: bool = True,
+        http2: bool = False,
+        limits: Limits = DEFAULT_LIMITS,
+        trust_env: bool = True,
+    ) -> BaseTransport:
+        return HTTPTransport(
+            verify=verify,
+            cert=cert,
+            http1=http1,
+            http2=http2,
+            limits=limits,
+            trust_env=trust_env,
+            proxy=proxy,
+        )
+
+    def _transport_for_url(self, url: URL) -> BaseTransport:
+        """
+        Returns the transport instance that should be used for a given URL.
+        This will either be the standard connection pool, or a proxy.
+        """
+        for pattern, transport in self._mounts.items():
+            if pattern.matches(url):
+                return self._transport if transport is None else transport
+
+        return self._transport
+
+    def request(
+        self,
+        method: str,
+        url: URL | str,
+        *,
+        content: RequestContent | None = None,
+        data: RequestData | None = None,
+        files: RequestFiles | None = None,
+        json: typing.Any | None = None,
+        params: QueryParamTypes | None = None,
+        headers: HeaderTypes | None = None,
+        cookies: CookieTypes | None = None,
+        auth: AuthTypes | UseClientDefault | None = USE_CLIENT_DEFAULT,
+        follow_redirects: bool | UseClientDefault = USE_CLIENT_DEFAULT,
+        timeout: TimeoutTypes | UseClientDefault = USE_CLIENT_DEFAULT,
+        extensions: RequestExtensions | None = None,
+    ) -> Response:
+        """
+        Build and send a request.
+
+        Equivalent to:
+
+        ```python
+        request = client.build_request(...)
+        response = client.send(request, ...)
+        ```
+
+        See `Client.build_request()`, `Client.send()` and
+        [Merging of configuration][0] for how the various parameters
+        are merged with client-level configuration.
+
+        [0]: /advanced/clients/#merging-of-configuration
+        """
+        if cookies is not None:
+            message = (
+                "Setting per-request cookies=<...> is being deprecated, because "
+                "the expected behaviour on cookie persistence is ambiguous. Set "
+                "cookies directly on the client instance instead."
+            )
+            warnings.warn(message, DeprecationWarning)
+
+        request = self.build_request(
+            method=method,
+            url=url,
+            content=content,
+            data=data,
+            files=files,
+            json=json,
+            params=params,
+            headers=headers,
+            cookies=cookies,
+            timeout=timeout,
+            extensions=extensions,
+        )
+        return self.send(request, auth=auth, follow_redirects=follow_redirects)
+
+    @contextmanager
+    def stream(
+        self,
+        method: str,
+        url: URL | str,
+        *,
+        content: RequestContent | None = None,
+        data: RequestData | None = None,
+        files: RequestFiles | None = None,
+        json: typing.Any | None = None,
+        params: QueryParamTypes | None = None,
+        headers: HeaderTypes | None = None,
+        cookies: CookieTypes | None = None,
+        auth: AuthTypes | UseClientDefault | None = USE_CLIENT_DEFAULT,
+        follow_redirects: bool | UseClientDefault = USE_CLIENT_DEFAULT,
+        timeout: TimeoutTypes | UseClientDefault = USE_CLIENT_DEFAULT,
+        extensions: RequestExtensions | None = None,
+    ) -> typing.Iterator[Response]:
+        """
+        Alternative to `httpx.request()` that streams the response body
+        instead of loading it into memory at once.
+
+        **Parameters**: See `httpx.request`.
+
+        See also: [Streaming Responses][0]
+
+        [0]: /quickstart#streaming-responses
+        """
+        request = self.build_request(
+            method=method,
+            url=url,
+            content=content,
+            data=data,
+            files=files,
+            json=json,
+            params=params,
+            headers=headers,
+            cookies=cookies,
+            timeout=timeout,
+            extensions=extensions,
+        )
+        response = self.send(
+            request=request,
+            auth=auth,
+            follow_redirects=follow_redirects,
+            stream=True,
+        )
+        try:
+            yield response
+        finally:
+            response.close()
+
+    def send(
+        self,
+        request: Request,
+        *,
+        stream: bool = False,
+        auth: AuthTypes | UseClientDefault | None = USE_CLIENT_DEFAULT,
+        follow_redirects: bool | UseClientDefault = USE_CLIENT_DEFAULT,
+    ) -> Response:
+        """
+        Send a request.
+
+        The request is sent as-is, unmodified.
+
+        Typically you'll want to build one with `Client.build_request()`
+        so that any client-level configuration is merged into the request,
+        but passing an explicit `httpx.Request()` is supported as well.
+
+        See also: [Request instances][0]
+
+        [0]: /advanced/clients/#request-instances
+        """
+        if self._state == ClientState.CLOSED:
+            raise RuntimeError("Cannot send a request, as the client has been closed.")
+
+        self._state = ClientState.OPENED
+        follow_redirects = (
+            self.follow_redirects
+            if isinstance(follow_redirects, UseClientDefault)
+            else follow_redirects
+        )
+
+        self._set_timeout(request)
+
+        auth = self._build_request_auth(request, auth)
+
+        response = self._send_handling_auth(
+            request,
+            auth=auth,
+            follow_redirects=follow_redirects,
+            history=[],
+        )
+        try:
+            if not stream:
+                response.read()
+
+            return response
+
+        except BaseException as exc:
+            response.close()
+            raise exc
+
+    def _send_handling_auth(
+        self,
+        request: Request,
+        auth: Auth,
+        follow_redirects: bool,
+        history: list[Response],
+    ) -> Response:
+        auth_flow = auth.sync_auth_flow(request)
+        try:
+            request = next(auth_flow)
+
+            while True:
+                response = self._send_handling_redirects(
+                    request,
+                    follow_redirects=follow_redirects,
+                    history=history,
+                )
+                try:
+                    try:
+                        next_request = auth_flow.send(response)
+                    except StopIteration:
+                        return response
+
+                    response.history = list(history)
+                    response.read()
+                    request = next_request
+                    history.append(response)
+
+                except BaseException as exc:
+                    response.close()
+                    raise exc
+        finally:
+            auth_flow.close()
+
+    def _send_handling_redirects(
+        self,
+        request: Request,
+        follow_redirects: bool,
+        history: list[Response],
+    ) -> Response:
+        while True:
+            if len(history) > self.max_redirects:
+                raise TooManyRedirects(
+                    "Exceeded maximum allowed redirects.", request=request
+                )
+
+            for hook in self._event_hooks["request"]:
+                hook(request)
+
+            response = self._send_single_request(request)
+            try:
+                for hook in self._event_hooks["response"]:
+                    hook(response)
+                response.history = list(history)
+
+                if not response.has_redirect_location:
+                    return response
+
+                request = self._build_redirect_request(request, response)
+                history = history + [response]
+
+                if follow_redirects:
+                    response.read()
+                else:
+                    response.next_request = request
+                    return response
+
+            except BaseException as exc:
+                response.close()
+                raise exc
+
+    def _send_single_request(self, request: Request) -> Response:
+        """
+        Sends a single request, without handling any redirections.
+        """
+        transport = self._transport_for_url(request.url)
+        timer = Timer()
+        timer.sync_start()
+
+        if not isinstance(request.stream, SyncByteStream):
+            raise RuntimeError(
+                "Attempted to send an async request with a sync Client instance."
+            )
+
+        with request_context(request=request):
+            response = transport.handle_request(request)
+
+        assert isinstance(response.stream, SyncByteStream)
+
+        response.request = request
+        response.stream = BoundSyncStream(
+            response.stream, response=response, timer=timer
+        )
+        self.cookies.extract_cookies(response)
+        response.default_encoding = self._default_encoding
+
+        logger.info(
+            'HTTP Request: %s %s "%s %d %s"',
+            request.method,
+            request.url,
+            response.http_version,
+            response.status_code,
+            response.reason_phrase,
+        )
+
+        return response
+
+    def get(
+        self,
+        url: URL | str,
+        *,
+        params: QueryParamTypes | None = None,
+        headers: HeaderTypes | None = None,
+        cookies: CookieTypes | None = None,
+        auth: AuthTypes | UseClientDefault | None = USE_CLIENT_DEFAULT,
+        follow_redirects: bool | UseClientDefault = USE_CLIENT_DEFAULT,
+        timeout: TimeoutTypes | UseClientDefault = USE_CLIENT_DEFAULT,
+        extensions: RequestExtensions | None = None,
+    ) -> Response:
+        """
+        Send a `GET` request.
+
+        **Parameters**: See `httpx.request`.
+        """
+        return self.request(
+            "GET",
+            url,
+            params=params,
+            headers=headers,
+            cookies=cookies,
+            auth=auth,
+            follow_redirects=follow_redirects,
+            timeout=timeout,
+            extensions=extensions,
+        )
+
+    def options(
+        self,
+        url: URL | str,
+        *,
+        params: QueryParamTypes | None = None,
+        headers: HeaderTypes | None = None,
+        cookies: CookieTypes | None = None,
+        auth: AuthTypes | UseClientDefault = USE_CLIENT_DEFAULT,
+        follow_redirects: bool | UseClientDefault = USE_CLIENT_DEFAULT,
+        timeout: TimeoutTypes | UseClientDefault = USE_CLIENT_DEFAULT,
+        extensions: RequestExtensions | None = None,
+    ) -> Response:
+        """
+        Send an `OPTIONS` request.
+
+        **Parameters**: See `httpx.request`.
+        """
+        return self.request(
+            "OPTIONS",
+            url,
+            params=params,
+            headers=headers,
+            cookies=cookies,
+            auth=auth,
+            follow_redirects=follow_redirects,
+            timeout=timeout,
+            extensions=extensions,
+        )
+
+    def head(
+        self,
+        url: URL | str,
+        *,
+        params: QueryParamTypes | None = None,
+        headers: HeaderTypes | None = None,
+        cookies: CookieTypes | None = None,
+        auth: AuthTypes | UseClientDefault = USE_CLIENT_DEFAULT,
+        follow_redirects: bool | UseClientDefault = USE_CLIENT_DEFAULT,
+        timeout: TimeoutTypes | UseClientDefault = USE_CLIENT_DEFAULT,
+        extensions: RequestExtensions | None = None,
+    ) -> Response:
+        """
+        Send a `HEAD` request.
+
+        **Parameters**: See `httpx.request`.
+        """
+        return self.request(
+            "HEAD",
+            url,
+            params=params,
+            headers=headers,
+            cookies=cookies,
+            auth=auth,
+            follow_redirects=follow_redirects,
+            timeout=timeout,
+            extensions=extensions,
+        )
+
+    def post(
+        self,
+        url: URL | str,
+        *,
+        content: RequestContent | None = None,
+        data: RequestData | None = None,
+        files: RequestFiles | None = None,
+        json: typing.Any | None = None,
+        params: QueryParamTypes | None = None,
+        headers: HeaderTypes | None = None,
+        cookies: CookieTypes | None = None,
+        auth: AuthTypes | UseClientDefault = USE_CLIENT_DEFAULT,
+        follow_redirects: bool | UseClientDefault = USE_CLIENT_DEFAULT,
+        timeout: TimeoutTypes | UseClientDefault = USE_CLIENT_DEFAULT,
+        extensions: RequestExtensions | None = None,
+    ) -> Response:
+        """
+        Send a `POST` request.
+
+        **Parameters**: See `httpx.request`.
+        """
+        return self.request(
+            "POST",
+            url,
+            content=content,
+            data=data,
+            files=files,
+            json=json,
+            params=params,
+            headers=headers,
+            cookies=cookies,
+            auth=auth,
+            follow_redirects=follow_redirects,
+            timeout=timeout,
+            extensions=extensions,
+        )
+
+    def put(
+        self,
+        url: URL | str,
+        *,
+        content: RequestContent | None = None,
+        data: RequestData | None = None,
+        files: RequestFiles | None = None,
+        json: typing.Any | None = None,
+        params: QueryParamTypes | None = None,
+        headers: HeaderTypes | None = None,
+        cookies: CookieTypes | None = None,
+        auth: AuthTypes | UseClientDefault = USE_CLIENT_DEFAULT,
+        follow_redirects: bool | UseClientDefault = USE_CLIENT_DEFAULT,
+        timeout: TimeoutTypes | UseClientDefault = USE_CLIENT_DEFAULT,
+        extensions: RequestExtensions | None = None,
+    ) -> Response:
+        """
+        Send a `PUT` request.
+
+        **Parameters**: See `httpx.request`.
+        """
+        return self.request(
+            "PUT",
+            url,
+            content=content,
+            data=data,
+            files=files,
+            json=json,
+            params=params,
+            headers=headers,
+            cookies=cookies,
+            auth=auth,
+            follow_redirects=follow_redirects,
+            timeout=timeout,
+            extensions=extensions,
+        )
+
+    def patch(
+        self,
+        url: URL | str,
+        *,
+        content: RequestContent | None = None,
+        data: RequestData | None = None,
+        files: RequestFiles | None = None,
+        json: typing.Any | None = None,
+        params: QueryParamTypes | None = None,
+        headers: HeaderTypes | None = None,
+        cookies: CookieTypes | None = None,
+        auth: AuthTypes | UseClientDefault = USE_CLIENT_DEFAULT,
+        follow_redirects: bool | UseClientDefault = USE_CLIENT_DEFAULT,
+        timeout: TimeoutTypes | UseClientDefault = USE_CLIENT_DEFAULT,
+        extensions: RequestExtensions | None = None,
+    ) -> Response:
+        """
+        Send a `PATCH` request.
+
+        **Parameters**: See `httpx.request`.
+        """
+        return self.request(
+            "PATCH",
+            url,
+            content=content,
+            data=data,
+            files=files,
+            json=json,
+            params=params,
+            headers=headers,
+            cookies=cookies,
+            auth=auth,
+            follow_redirects=follow_redirects,
+            timeout=timeout,
+            extensions=extensions,
+        )
+
+    def delete(
+        self,
+        url: URL | str,
+        *,
+        params: QueryParamTypes | None = None,
+        headers: HeaderTypes | None = None,
+        cookies: CookieTypes | None = None,
+        auth: AuthTypes | UseClientDefault = USE_CLIENT_DEFAULT,
+        follow_redirects: bool | UseClientDefault = USE_CLIENT_DEFAULT,
+        timeout: TimeoutTypes | UseClientDefault = USE_CLIENT_DEFAULT,
+        extensions: RequestExtensions | None = None,
+    ) -> Response:
+        """
+        Send a `DELETE` request.
+
+        **Parameters**: See `httpx.request`.
+        """
+        return self.request(
+            "DELETE",
+            url,
+            params=params,
+            headers=headers,
+            cookies=cookies,
+            auth=auth,
+            follow_redirects=follow_redirects,
+            timeout=timeout,
+            extensions=extensions,
+        )
+
+    def close(self) -> None:
+        """
+        Close transport and proxies.
+        """
+        if self._state != ClientState.CLOSED:
+            self._state = ClientState.CLOSED
+
+            self._transport.close()
+            for transport in self._mounts.values():
+                if transport is not None:
+                    transport.close()
+
+    def __enter__(self: T) -> T:
+        if self._state != ClientState.UNOPENED:
+            msg = {
+                ClientState.OPENED: "Cannot open a client instance more than once.",
+                ClientState.CLOSED: (
+                    "Cannot reopen a client instance, once it has been closed."
+                ),
+            }[self._state]
+            raise RuntimeError(msg)
+
+        self._state = ClientState.OPENED
+
+        self._transport.__enter__()
+        for transport in self._mounts.values():
+            if transport is not None:
+                transport.__enter__()
+        return self
+
+    def __exit__(
+        self,
+        exc_type: type[BaseException] | None = None,
+        exc_value: BaseException | None = None,
+        traceback: TracebackType | None = None,
+    ) -> None:
+        self._state = ClientState.CLOSED
+
+        self._transport.__exit__(exc_type, exc_value, traceback)
+        for transport in self._mounts.values():
+            if transport is not None:
+                transport.__exit__(exc_type, exc_value, traceback)
+
+
+class AsyncClient(BaseClient):
+    """
+    An asynchronous HTTP client, with connection pooling, HTTP/2, redirects,
+    cookie persistence, etc.
+
+    It can be shared between tasks.
+
+    Usage:
+
+    ```python
+    >>> async with httpx.AsyncClient() as client:
+    >>>     response = await client.get('https://example.org')
+    ```
+
+    **Parameters:**
+
+    * **auth** - *(optional)* An authentication class to use when sending
+    requests.
+    * **params** - *(optional)* Query parameters to include in request URLs, as
+    a string, dictionary, or sequence of two-tuples.
+    * **headers** - *(optional)* Dictionary of HTTP headers to include when
+    sending requests.
+    * **cookies** - *(optional)* Dictionary of Cookie items to include when
+    sending requests.
+    * **verify** - *(optional)* SSL certificates (a.k.a CA bundle) used to
+    verify the identity of requested hosts. Either `True` (default CA bundle),
+    a path to an SSL certificate file, an `ssl.SSLContext`, or `False`
+    (which will disable verification).
+    * **cert** - *(optional)* An SSL certificate used by the requested host
+    to authenticate the client. Either a path to an SSL certificate file, or
+    two-tuple of (certificate file, key file), or a three-tuple of (certificate
+    file, key file, password).
+    * **http2** - *(optional)* A boolean indicating if HTTP/2 support should be
+    enabled. Defaults to `False`.
+    * **proxy** - *(optional)* A proxy URL where all the traffic should be routed.
+    * **proxies** - *(optional)* A dictionary mapping HTTP protocols to proxy
+    URLs.
+    * **timeout** - *(optional)* The timeout configuration to use when sending
+    requests.
+    * **limits** - *(optional)* The limits configuration to use.
+    * **max_redirects** - *(optional)* The maximum number of redirect responses
+    that should be followed.
+    * **base_url** - *(optional)* A URL to use as the base when building
+    request URLs.
+    * **transport** - *(optional)* A transport class to use for sending requests
+    over the network.
+    * **app** - *(optional)* An ASGI application to send requests to,
+    rather than sending actual network requests.
+    * **trust_env** - *(optional)* Enables or disables usage of environment
+    variables for configuration.
+    * **default_encoding** - *(optional)* The default encoding to use for decoding
+    response text, if no charset information is included in a response Content-Type
+    header. Set to a callable for automatic character set detection. Default: "utf-8".
+    """
+
+    def __init__(
+        self,
+        *,
+        auth: AuthTypes | None = None,
+        params: QueryParamTypes | None = None,
+        headers: HeaderTypes | None = None,
+        cookies: CookieTypes | None = None,
+        verify: VerifyTypes = True,
+        cert: CertTypes | None = None,
+        http1: bool = True,
+        http2: bool = False,
+        proxy: ProxyTypes | None = None,
+        proxies: ProxiesTypes | None = None,
+        mounts: None | (typing.Mapping[str, AsyncBaseTransport | None]) = None,
+        timeout: TimeoutTypes = DEFAULT_TIMEOUT_CONFIG,
+        follow_redirects: bool = False,
+        limits: Limits = DEFAULT_LIMITS,
+        max_redirects: int = DEFAULT_MAX_REDIRECTS,
+        event_hooks: None | (typing.Mapping[str, list[EventHook]]) = None,
+        base_url: URL | str = "",
+        transport: AsyncBaseTransport | None = None,
+        app: typing.Callable[..., typing.Any] | None = None,
+        trust_env: bool = True,
+        default_encoding: str | typing.Callable[[bytes], str] = "utf-8",
+    ) -> None:
+        super().__init__(
+            auth=auth,
+            params=params,
+            headers=headers,
+            cookies=cookies,
+            timeout=timeout,
+            follow_redirects=follow_redirects,
+            max_redirects=max_redirects,
+            event_hooks=event_hooks,
+            base_url=base_url,
+            trust_env=trust_env,
+            default_encoding=default_encoding,
+        )
+
+        if http2:
+            try:
+                import h2  # noqa
+            except ImportError:  # pragma: no cover
+                raise ImportError(
+                    "Using http2=True, but the 'h2' package is not installed. "
+                    "Make sure to install httpx using `pip install httpx[http2]`."
+                ) from None
+
+        if proxies:
+            message = (
+                "The 'proxies' argument is now deprecated."
+                " Use 'proxy' or 'mounts' instead."
+            )
+            warnings.warn(message, DeprecationWarning)
+            if proxy:
+                raise RuntimeError("Use either `proxy` or 'proxies', not both.")
+
+        if app:
+            message = (
+                "The 'app' shortcut is now deprecated."
+                " Use the explicit style 'transport=ASGITransport(app=...)' instead."
+            )
+            warnings.warn(message, DeprecationWarning)
+
+        allow_env_proxies = trust_env and app is None and transport is None
+        proxy_map = self._get_proxy_map(proxies or proxy, allow_env_proxies)
+
+        self._transport = self._init_transport(
+            verify=verify,
+            cert=cert,
+            http1=http1,
+            http2=http2,
+            limits=limits,
+            transport=transport,
+            app=app,
+            trust_env=trust_env,
+        )
+
+        self._mounts: dict[URLPattern, AsyncBaseTransport | None] = {
+            URLPattern(key): None
+            if proxy is None
+            else self._init_proxy_transport(
+                proxy,
+                verify=verify,
+                cert=cert,
+                http1=http1,
+                http2=http2,
+                limits=limits,
+                trust_env=trust_env,
+            )
+            for key, proxy in proxy_map.items()
+        }
+        if mounts is not None:
+            self._mounts.update(
+                {URLPattern(key): transport for key, transport in mounts.items()}
+            )
+        self._mounts = dict(sorted(self._mounts.items()))
+
+    def _init_transport(
+        self,
+        verify: VerifyTypes = True,
+        cert: CertTypes | None = None,
+        http1: bool = True,
+        http2: bool = False,
+        limits: Limits = DEFAULT_LIMITS,
+        transport: AsyncBaseTransport | None = None,
+        app: typing.Callable[..., typing.Any] | None = None,
+        trust_env: bool = True,
+    ) -> AsyncBaseTransport:
+        if transport is not None:
+            return transport
+
+        if app is not None:
+            return ASGITransport(app=app)
+
+        return AsyncHTTPTransport(
+            verify=verify,
+            cert=cert,
+            http1=http1,
+            http2=http2,
+            limits=limits,
+            trust_env=trust_env,
+        )
+
+    def _init_proxy_transport(
+        self,
+        proxy: Proxy,
+        verify: VerifyTypes = True,
+        cert: CertTypes | None = None,
+        http1: bool = True,
+        http2: bool = False,
+        limits: Limits = DEFAULT_LIMITS,
+        trust_env: bool = True,
+    ) -> AsyncBaseTransport:
+        return AsyncHTTPTransport(
+            verify=verify,
+            cert=cert,
+            http1=http1,
+            http2=http2,
+            limits=limits,
+            trust_env=trust_env,
+            proxy=proxy,
+        )
+
+    def _transport_for_url(self, url: URL) -> AsyncBaseTransport:
+        """
+        Returns the transport instance that should be used for a given URL.
+        This will either be the standard connection pool, or a proxy.
+        """
+        for pattern, transport in self._mounts.items():
+            if pattern.matches(url):
+                return self._transport if transport is None else transport
+
+        return self._transport
+
+    async def request(
+        self,
+        method: str,
+        url: URL | str,
+        *,
+        content: RequestContent | None = None,
+        data: RequestData | None = None,
+        files: RequestFiles | None = None,
+        json: typing.Any | None = None,
+        params: QueryParamTypes | None = None,
+        headers: HeaderTypes | None = None,
+        cookies: CookieTypes | None = None,
+        auth: AuthTypes | UseClientDefault | None = USE_CLIENT_DEFAULT,
+        follow_redirects: bool | UseClientDefault = USE_CLIENT_DEFAULT,
+        timeout: TimeoutTypes | UseClientDefault = USE_CLIENT_DEFAULT,
+        extensions: RequestExtensions | None = None,
+    ) -> Response:
+        """
+        Build and send a request.
+
+        Equivalent to:
+
+        ```python
+        request = client.build_request(...)
+        response = await client.send(request, ...)
+        ```
+
+        See `AsyncClient.build_request()`, `AsyncClient.send()`
+        and [Merging of configuration][0] for how the various parameters
+        are merged with client-level configuration.
+
+        [0]: /advanced/clients/#merging-of-configuration
+        """
+
+        if cookies is not None:  # pragma: no cover
+            message = (
+                "Setting per-request cookies=<...> is being deprecated, because "
+                "the expected behaviour on cookie persistence is ambiguous. Set "
+                "cookies directly on the client instance instead."
+            )
+            warnings.warn(message, DeprecationWarning)
+
+        request = self.build_request(
+            method=method,
+            url=url,
+            content=content,
+            data=data,
+            files=files,
+            json=json,
+            params=params,
+            headers=headers,
+            cookies=cookies,
+            timeout=timeout,
+            extensions=extensions,
+        )
+        return await self.send(request, auth=auth, follow_redirects=follow_redirects)
+
+    @asynccontextmanager
+    async def stream(
+        self,
+        method: str,
+        url: URL | str,
+        *,
+        content: RequestContent | None = None,
+        data: RequestData | None = None,
+        files: RequestFiles | None = None,
+        json: typing.Any | None = None,
+        params: QueryParamTypes | None = None,
+        headers: HeaderTypes | None = None,
+        cookies: CookieTypes | None = None,
+        auth: AuthTypes | UseClientDefault | None = USE_CLIENT_DEFAULT,
+        follow_redirects: bool | UseClientDefault = USE_CLIENT_DEFAULT,
+        timeout: TimeoutTypes | UseClientDefault = USE_CLIENT_DEFAULT,
+        extensions: RequestExtensions | None = None,
+    ) -> typing.AsyncIterator[Response]:
+        """
+        Alternative to `httpx.request()` that streams the response body
+        instead of loading it into memory at once.
+
+        **Parameters**: See `httpx.request`.
+
+        See also: [Streaming Responses][0]
+
+        [0]: /quickstart#streaming-responses
+        """
+        request = self.build_request(
+            method=method,
+            url=url,
+            content=content,
+            data=data,
+            files=files,
+            json=json,
+            params=params,
+            headers=headers,
+            cookies=cookies,
+            timeout=timeout,
+            extensions=extensions,
+        )
+        response = await self.send(
+            request=request,
+            auth=auth,
+            follow_redirects=follow_redirects,
+            stream=True,
+        )
+        try:
+            yield response
+        finally:
+            await response.aclose()
+
+    async def send(
+        self,
+        request: Request,
+        *,
+        stream: bool = False,
+        auth: AuthTypes | UseClientDefault | None = USE_CLIENT_DEFAULT,
+        follow_redirects: bool | UseClientDefault = USE_CLIENT_DEFAULT,
+    ) -> Response:
+        """
+        Send a request.
+
+        The request is sent as-is, unmodified.
+
+        Typically you'll want to build one with `AsyncClient.build_request()`
+        so that any client-level configuration is merged into the request,
+        but passing an explicit `httpx.Request()` is supported as well.
+
+        See also: [Request instances][0]
+
+        [0]: /advanced/clients/#request-instances
+        """
+        if self._state == ClientState.CLOSED:
+            raise RuntimeError("Cannot send a request, as the client has been closed.")
+
+        self._state = ClientState.OPENED
+        follow_redirects = (
+            self.follow_redirects
+            if isinstance(follow_redirects, UseClientDefault)
+            else follow_redirects
+        )
+
+        self._set_timeout(request)
+
+        auth = self._build_request_auth(request, auth)
+
+        response = await self._send_handling_auth(
+            request,
+            auth=auth,
+            follow_redirects=follow_redirects,
+            history=[],
+        )
+        try:
+            if not stream:
+                await response.aread()
+
+            return response
+
+        except BaseException as exc:
+            await response.aclose()
+            raise exc
+
+    async def _send_handling_auth(
+        self,
+        request: Request,
+        auth: Auth,
+        follow_redirects: bool,
+        history: list[Response],
+    ) -> Response:
+        auth_flow = auth.async_auth_flow(request)
+        try:
+            request = await auth_flow.__anext__()
+
+            while True:
+                response = await self._send_handling_redirects(
+                    request,
+                    follow_redirects=follow_redirects,
+                    history=history,
+                )
+                try:
+                    try:
+                        next_request = await auth_flow.asend(response)
+                    except StopAsyncIteration:
+                        return response
+
+                    response.history = list(history)
+                    await response.aread()
+                    request = next_request
+                    history.append(response)
+
+                except BaseException as exc:
+                    await response.aclose()
+                    raise exc
+        finally:
+            await auth_flow.aclose()
+
+    async def _send_handling_redirects(
+        self,
+        request: Request,
+        follow_redirects: bool,
+        history: list[Response],
+    ) -> Response:
+        while True:
+            if len(history) > self.max_redirects:
+                raise TooManyRedirects(
+                    "Exceeded maximum allowed redirects.", request=request
+                )
+
+            for hook in self._event_hooks["request"]:
+                await hook(request)
+
+            response = await self._send_single_request(request)
+            try:
+                for hook in self._event_hooks["response"]:
+                    await hook(response)
+
+                response.history = list(history)
+
+                if not response.has_redirect_location:
+                    return response
+
+                request = self._build_redirect_request(request, response)
+                history = history + [response]
+
+                if follow_redirects:
+                    await response.aread()
+                else:
+                    response.next_request = request
+                    return response
+
+            except BaseException as exc:
+                await response.aclose()
+                raise exc
+
+    async def _send_single_request(self, request: Request) -> Response:
+        """
+        Sends a single request, without handling any redirections.
+        """
+        transport = self._transport_for_url(request.url)
+        timer = Timer()
+        await timer.async_start()
+
+        if not isinstance(request.stream, AsyncByteStream):
+            raise RuntimeError(
+                "Attempted to send an sync request with an AsyncClient instance."
+            )
+
+        with request_context(request=request):
+            response = await transport.handle_async_request(request)
+
+        assert isinstance(response.stream, AsyncByteStream)
+        response.request = request
+        response.stream = BoundAsyncStream(
+            response.stream, response=response, timer=timer
+        )
+        self.cookies.extract_cookies(response)
+        response.default_encoding = self._default_encoding
+
+        logger.info(
+            'HTTP Request: %s %s "%s %d %s"',
+            request.method,
+            request.url,
+            response.http_version,
+            response.status_code,
+            response.reason_phrase,
+        )
+
+        return response
+
+    async def get(
+        self,
+        url: URL | str,
+        *,
+        params: QueryParamTypes | None = None,
+        headers: HeaderTypes | None = None,
+        cookies: CookieTypes | None = None,
+        auth: AuthTypes | UseClientDefault | None = USE_CLIENT_DEFAULT,
+        follow_redirects: bool | UseClientDefault = USE_CLIENT_DEFAULT,
+        timeout: TimeoutTypes | UseClientDefault = USE_CLIENT_DEFAULT,
+        extensions: RequestExtensions | None = None,
+    ) -> Response:
+        """
+        Send a `GET` request.
+
+        **Parameters**: See `httpx.request`.
+        """
+        return await self.request(
+            "GET",
+            url,
+            params=params,
+            headers=headers,
+            cookies=cookies,
+            auth=auth,
+            follow_redirects=follow_redirects,
+            timeout=timeout,
+            extensions=extensions,
+        )
+
+    async def options(
+        self,
+        url: URL | str,
+        *,
+        params: QueryParamTypes | None = None,
+        headers: HeaderTypes | None = None,
+        cookies: CookieTypes | None = None,
+        auth: AuthTypes | UseClientDefault = USE_CLIENT_DEFAULT,
+        follow_redirects: bool | UseClientDefault = USE_CLIENT_DEFAULT,
+        timeout: TimeoutTypes | UseClientDefault = USE_CLIENT_DEFAULT,
+        extensions: RequestExtensions | None = None,
+    ) -> Response:
+        """
+        Send an `OPTIONS` request.
+
+        **Parameters**: See `httpx.request`.
+        """
+        return await self.request(
+            "OPTIONS",
+            url,
+            params=params,
+            headers=headers,
+            cookies=cookies,
+            auth=auth,
+            follow_redirects=follow_redirects,
+            timeout=timeout,
+            extensions=extensions,
+        )
+
+    async def head(
+        self,
+        url: URL | str,
+        *,
+        params: QueryParamTypes | None = None,
+        headers: HeaderTypes | None = None,
+        cookies: CookieTypes | None = None,
+        auth: AuthTypes | UseClientDefault = USE_CLIENT_DEFAULT,
+        follow_redirects: bool | UseClientDefault = USE_CLIENT_DEFAULT,
+        timeout: TimeoutTypes | UseClientDefault = USE_CLIENT_DEFAULT,
+        extensions: RequestExtensions | None = None,
+    ) -> Response:
+        """
+        Send a `HEAD` request.
+
+        **Parameters**: See `httpx.request`.
+        """
+        return await self.request(
+            "HEAD",
+            url,
+            params=params,
+            headers=headers,
+            cookies=cookies,
+            auth=auth,
+            follow_redirects=follow_redirects,
+            timeout=timeout,
+            extensions=extensions,
+        )
+
+    async def post(
+        self,
+        url: URL | str,
+        *,
+        content: RequestContent | None = None,
+        data: RequestData | None = None,
+        files: RequestFiles | None = None,
+        json: typing.Any | None = None,
+        params: QueryParamTypes | None = None,
+        headers: HeaderTypes | None = None,
+        cookies: CookieTypes | None = None,
+        auth: AuthTypes | UseClientDefault = USE_CLIENT_DEFAULT,
+        follow_redirects: bool | UseClientDefault = USE_CLIENT_DEFAULT,
+        timeout: TimeoutTypes | UseClientDefault = USE_CLIENT_DEFAULT,
+        extensions: RequestExtensions | None = None,
+    ) -> Response:
+        """
+        Send a `POST` request.
+
+        **Parameters**: See `httpx.request`.
+        """
+        return await self.request(
+            "POST",
+            url,
+            content=content,
+            data=data,
+            files=files,
+            json=json,
+            params=params,
+            headers=headers,
+            cookies=cookies,
+            auth=auth,
+            follow_redirects=follow_redirects,
+            timeout=timeout,
+            extensions=extensions,
+        )
+
+    async def put(
+        self,
+        url: URL | str,
+        *,
+        content: RequestContent | None = None,
+        data: RequestData | None = None,
+        files: RequestFiles | None = None,
+        json: typing.Any | None = None,
+        params: QueryParamTypes | None = None,
+        headers: HeaderTypes | None = None,
+        cookies: CookieTypes | None = None,
+        auth: AuthTypes | UseClientDefault = USE_CLIENT_DEFAULT,
+        follow_redirects: bool | UseClientDefault = USE_CLIENT_DEFAULT,
+        timeout: TimeoutTypes | UseClientDefault = USE_CLIENT_DEFAULT,
+        extensions: RequestExtensions | None = None,
+    ) -> Response:
+        """
+        Send a `PUT` request.
+
+        **Parameters**: See `httpx.request`.
+        """
+        return await self.request(
+            "PUT",
+            url,
+            content=content,
+            data=data,
+            files=files,
+            json=json,
+            params=params,
+            headers=headers,
+            cookies=cookies,
+            auth=auth,
+            follow_redirects=follow_redirects,
+            timeout=timeout,
+            extensions=extensions,
+        )
+
+    async def patch(
+        self,
+        url: URL | str,
+        *,
+        content: RequestContent | None = None,
+        data: RequestData | None = None,
+        files: RequestFiles | None = None,
+        json: typing.Any | None = None,
+        params: QueryParamTypes | None = None,
+        headers: HeaderTypes | None = None,
+        cookies: CookieTypes | None = None,
+        auth: AuthTypes | UseClientDefault = USE_CLIENT_DEFAULT,
+        follow_redirects: bool | UseClientDefault = USE_CLIENT_DEFAULT,
+        timeout: TimeoutTypes | UseClientDefault = USE_CLIENT_DEFAULT,
+        extensions: RequestExtensions | None = None,
+    ) -> Response:
+        """
+        Send a `PATCH` request.
+
+        **Parameters**: See `httpx.request`.
+        """
+        return await self.request(
+            "PATCH",
+            url,
+            content=content,
+            data=data,
+            files=files,
+            json=json,
+            params=params,
+            headers=headers,
+            cookies=cookies,
+            auth=auth,
+            follow_redirects=follow_redirects,
+            timeout=timeout,
+            extensions=extensions,
+        )
+
+    async def delete(
+        self,
+        url: URL | str,
+        *,
+        params: QueryParamTypes | None = None,
+        headers: HeaderTypes | None = None,
+        cookies: CookieTypes | None = None,
+        auth: AuthTypes | UseClientDefault = USE_CLIENT_DEFAULT,
+        follow_redirects: bool | UseClientDefault = USE_CLIENT_DEFAULT,
+        timeout: TimeoutTypes | UseClientDefault = USE_CLIENT_DEFAULT,
+        extensions: RequestExtensions | None = None,
+    ) -> Response:
+        """
+        Send a `DELETE` request.
+
+        **Parameters**: See `httpx.request`.
+        """
+        return await self.request(
+            "DELETE",
+            url,
+            params=params,
+            headers=headers,
+            cookies=cookies,
+            auth=auth,
+            follow_redirects=follow_redirects,
+            timeout=timeout,
+            extensions=extensions,
+        )
+
+    async def aclose(self) -> None:
+        """
+        Close transport and proxies.
+        """
+        if self._state != ClientState.CLOSED:
+            self._state = ClientState.CLOSED
+
+            await self._transport.aclose()
+            for proxy in self._mounts.values():
+                if proxy is not None:
+                    await proxy.aclose()
+
+    async def __aenter__(self: U) -> U:
+        if self._state != ClientState.UNOPENED:
+            msg = {
+                ClientState.OPENED: "Cannot open a client instance more than once.",
+                ClientState.CLOSED: (
+                    "Cannot reopen a client instance, once it has been closed."
+                ),
+            }[self._state]
+            raise RuntimeError(msg)
+
+        self._state = ClientState.OPENED
+
+        await self._transport.__aenter__()
+        for proxy in self._mounts.values():
+            if proxy is not None:
+                await proxy.__aenter__()
+        return self
+
+    async def __aexit__(
+        self,
+        exc_type: type[BaseException] | None = None,
+        exc_value: BaseException | None = None,
+        traceback: TracebackType | None = None,
+    ) -> None:
+        self._state = ClientState.CLOSED
+
+        await self._transport.__aexit__(exc_type, exc_value, traceback)
+        for proxy in self._mounts.values():
+            if proxy is not None:
+                await proxy.__aexit__(exc_type, exc_value, traceback)

evalkit_tf437/lib/python3.10/site-packages/httpx/_multipart.py

@@ -0,0 +1,269 @@
+from __future__ import annotations
+
+import io
+import os
+import typing
+from pathlib import Path
+
+from ._types import (
+    AsyncByteStream,
+    FileContent,
+    FileTypes,
+    RequestData,
+    RequestFiles,
+    SyncByteStream,
+)
+from ._utils import (
+    format_form_param,
+    guess_content_type,
+    peek_filelike_length,
+    primitive_value_to_str,
+    to_bytes,
+)
+
+
+def get_multipart_boundary_from_content_type(
+    content_type: bytes | None,
+) -> bytes | None:
+    if not content_type or not content_type.startswith(b"multipart/form-data"):
+        return None
+    # parse boundary according to
+    # https://www.rfc-editor.org/rfc/rfc2046#section-5.1.1
+    if b";" in content_type:
+        for section in content_type.split(b";"):
+            if section.strip().lower().startswith(b"boundary="):
+                return section.strip()[len(b"boundary=") :].strip(b'"')
+    return None
+
+
+class DataField:
+    """
+    A single form field item, within a multipart form field.
+    """
+
+    def __init__(self, name: str, value: str | bytes | int | float | None) -> None:
+        if not isinstance(name, str):
+            raise TypeError(
+                f"Invalid type for name. Expected str, got {type(name)}: {name!r}"
+            )
+        if value is not None and not isinstance(value, (str, bytes, int, float)):
+            raise TypeError(
+                "Invalid type for value. Expected primitive type,"
+                f" got {type(value)}: {value!r}"
+            )
+        self.name = name
+        self.value: str | bytes = (
+            value if isinstance(value, bytes) else primitive_value_to_str(value)
+        )
+
+    def render_headers(self) -> bytes:
+        if not hasattr(self, "_headers"):
+            name = format_form_param("name", self.name)
+            self._headers = b"".join(
+                [b"Content-Disposition: form-data; ", name, b"\r\n\r\n"]
+            )
+
+        return self._headers
+
+    def render_data(self) -> bytes:
+        if not hasattr(self, "_data"):
+            self._data = to_bytes(self.value)
+
+        return self._data
+
+    def get_length(self) -> int:
+        headers = self.render_headers()
+        data = self.render_data()
+        return len(headers) + len(data)
+
+    def render(self) -> typing.Iterator[bytes]:
+        yield self.render_headers()
+        yield self.render_data()
+
+
+class FileField:
+    """
+    A single file field item, within a multipart form field.
+    """
+
+    CHUNK_SIZE = 64 * 1024
+
+    def __init__(self, name: str, value: FileTypes) -> None:
+        self.name = name
+
+        fileobj: FileContent
+
+        headers: dict[str, str] = {}
+        content_type: str | None = None
+
+        # This large tuple based API largely mirror's requests' API
+        # It would be good to think of better APIs for this that we could
+        # include in httpx 2.0 since variable length tuples(especially of 4 elements)
+        # are quite unwieldly
+        if isinstance(value, tuple):
+            if len(value) == 2:
+                # neither the 3rd parameter (content_type) nor the 4th (headers)
+                # was included
+                filename, fileobj = value
+            elif len(value) == 3:
+                filename, fileobj, content_type = value
+            else:
+                # all 4 parameters included
+                filename, fileobj, content_type, headers = value  # type: ignore
+        else:
+            filename = Path(str(getattr(value, "name", "upload"))).name
+            fileobj = value
+
+        if content_type is None:
+            content_type = guess_content_type(filename)
+
+        has_content_type_header = any("content-type" in key.lower() for key in headers)
+        if content_type is not None and not has_content_type_header:
+            # note that unlike requests, we ignore the content_type provided in the 3rd
+            # tuple element if it is also included in the headers requests does
+            # the opposite (it overwrites the headerwith the 3rd tuple element)
+            headers["Content-Type"] = content_type
+
+        if isinstance(fileobj, io.StringIO):
+            raise TypeError(
+                "Multipart file uploads require 'io.BytesIO', not 'io.StringIO'."
+            )
+        if isinstance(fileobj, io.TextIOBase):
+            raise TypeError(
+                "Multipart file uploads must be opened in binary mode, not text mode."
+            )
+
+        self.filename = filename
+        self.file = fileobj
+        self.headers = headers
+
+    def get_length(self) -> int | None:
+        headers = self.render_headers()
+
+        if isinstance(self.file, (str, bytes)):
+            return len(headers) + len(to_bytes(self.file))
+
+        file_length = peek_filelike_length(self.file)
+
+        # If we can't determine the filesize without reading it into memory,
+        # then return `None` here, to indicate an unknown file length.
+        if file_length is None:
+            return None
+
+        return len(headers) + file_length
+
+    def render_headers(self) -> bytes:
+        if not hasattr(self, "_headers"):
+            parts = [
+                b"Content-Disposition: form-data; ",
+                format_form_param("name", self.name),
+            ]
+            if self.filename:
+                filename = format_form_param("filename", self.filename)
+                parts.extend([b"; ", filename])
+            for header_name, header_value in self.headers.items():
+                key, val = f"\r\n{header_name}: ".encode(), header_value.encode()
+                parts.extend([key, val])
+            parts.append(b"\r\n\r\n")
+            self._headers = b"".join(parts)
+
+        return self._headers
+
+    def render_data(self) -> typing.Iterator[bytes]:
+        if isinstance(self.file, (str, bytes)):
+            yield to_bytes(self.file)
+            return
+
+        if hasattr(self.file, "seek"):
+            try:
+                self.file.seek(0)
+            except io.UnsupportedOperation:
+                pass
+
+        chunk = self.file.read(self.CHUNK_SIZE)
+        while chunk:
+            yield to_bytes(chunk)
+            chunk = self.file.read(self.CHUNK_SIZE)
+
+    def render(self) -> typing.Iterator[bytes]:
+        yield self.render_headers()
+        yield from self.render_data()
+
+
+class MultipartStream(SyncByteStream, AsyncByteStream):
+    """
+    Request content as streaming multipart encoded form data.
+    """
+
+    def __init__(
+        self,
+        data: RequestData,
+        files: RequestFiles,
+        boundary: bytes | None = None,
+    ) -> None:
+        if boundary is None:
+            boundary = os.urandom(16).hex().encode("ascii")
+
+        self.boundary = boundary
+        self.content_type = "multipart/form-data; boundary=%s" % boundary.decode(
+            "ascii"
+        )
+        self.fields = list(self._iter_fields(data, files))
+
+    def _iter_fields(
+        self, data: RequestData, files: RequestFiles
+    ) -> typing.Iterator[FileField | DataField]:
+        for name, value in data.items():
+            if isinstance(value, (tuple, list)):
+                for item in value:
+                    yield DataField(name=name, value=item)
+            else:
+                yield DataField(name=name, value=value)
+
+        file_items = files.items() if isinstance(files, typing.Mapping) else files
+        for name, value in file_items:
+            yield FileField(name=name, value=value)
+
+    def iter_chunks(self) -> typing.Iterator[bytes]:
+        for field in self.fields:
+            yield b"--%s\r\n" % self.boundary
+            yield from field.render()
+            yield b"\r\n"
+        yield b"--%s--\r\n" % self.boundary
+
+    def get_content_length(self) -> int | None:
+        """
+        Return the length of the multipart encoded content, or `None` if
+        any of the files have a length that cannot be determined upfront.
+        """
+        boundary_length = len(self.boundary)
+        length = 0
+
+        for field in self.fields:
+            field_length = field.get_length()
+            if field_length is None:
+                return None
+
+            length += 2 + boundary_length + 2  # b"--{boundary}\r\n"
+            length += field_length
+            length += 2  # b"\r\n"
+
+        length += 2 + boundary_length + 4  # b"--{boundary}--\r\n"
+        return length
+
+    # Content stream interface.
+
+    def get_headers(self) -> dict[str, str]:
+        content_length = self.get_content_length()
+        content_type = self.content_type
+        if content_length is None:
+            return {"Transfer-Encoding": "chunked", "Content-Type": content_type}
+        return {"Content-Length": str(content_length), "Content-Type": content_type}
+
+    def __iter__(self) -> typing.Iterator[bytes]:
+        for chunk in self.iter_chunks():
+            yield chunk
+
+    async def __aiter__(self) -> typing.AsyncIterator[bytes]:
+        for chunk in self.iter_chunks():
+            yield chunk

evalkit_tf437/lib/python3.10/site-packages/httpx/_transports/default.py

@@ -0,0 +1,389 @@
+"""
+Custom transports, with nicely configured defaults.
+
+The following additional keyword arguments are currently supported by httpcore...
+
+* uds: str
+* local_address: str
+* retries: int
+
+Example usages...
+
+# Disable HTTP/2 on a single specific domain.
+mounts = {
+    "all://": httpx.HTTPTransport(http2=True),
+    "all://*example.org": httpx.HTTPTransport()
+}
+
+# Using advanced httpcore configuration, with connection retries.
+transport = httpx.HTTPTransport(retries=1)
+client = httpx.Client(transport=transport)
+
+# Using advanced httpcore configuration, with unix domain sockets.
+transport = httpx.HTTPTransport(uds="socket.uds")
+client = httpx.Client(transport=transport)
+"""
+
+from __future__ import annotations
+
+import contextlib
+import typing
+from types import TracebackType
+
+import httpcore
+
+from .._config import DEFAULT_LIMITS, Limits, Proxy, create_ssl_context
+from .._exceptions import (
+    ConnectError,
+    ConnectTimeout,
+    LocalProtocolError,
+    NetworkError,
+    PoolTimeout,
+    ProtocolError,
+    ProxyError,
+    ReadError,
+    ReadTimeout,
+    RemoteProtocolError,
+    TimeoutException,
+    UnsupportedProtocol,
+    WriteError,
+    WriteTimeout,
+)
+from .._models import Request, Response
+from .._types import AsyncByteStream, CertTypes, ProxyTypes, SyncByteStream, VerifyTypes
+from .._urls import URL
+from .base import AsyncBaseTransport, BaseTransport
+
+T = typing.TypeVar("T", bound="HTTPTransport")
+A = typing.TypeVar("A", bound="AsyncHTTPTransport")
+
+SOCKET_OPTION = typing.Union[
+    typing.Tuple[int, int, int],
+    typing.Tuple[int, int, typing.Union[bytes, bytearray]],
+    typing.Tuple[int, int, None, int],
+]
+
+__all__ = ["AsyncHTTPTransport", "HTTPTransport"]
+
+
+@contextlib.contextmanager
+def map_httpcore_exceptions() -> typing.Iterator[None]:
+    try:
+        yield
+    except Exception as exc:
+        mapped_exc = None
+
+        for from_exc, to_exc in HTTPCORE_EXC_MAP.items():
+            if not isinstance(exc, from_exc):
+                continue
+            # We want to map to the most specific exception we can find.
+            # Eg if `exc` is an `httpcore.ReadTimeout`, we want to map to
+            # `httpx.ReadTimeout`, not just `httpx.TimeoutException`.
+            if mapped_exc is None or issubclass(to_exc, mapped_exc):
+                mapped_exc = to_exc
+
+        if mapped_exc is None:  # pragma: no cover
+            raise
+
+        message = str(exc)
+        raise mapped_exc(message) from exc
+
+
+HTTPCORE_EXC_MAP = {
+    httpcore.TimeoutException: TimeoutException,
+    httpcore.ConnectTimeout: ConnectTimeout,
+    httpcore.ReadTimeout: ReadTimeout,
+    httpcore.WriteTimeout: WriteTimeout,
+    httpcore.PoolTimeout: PoolTimeout,
+    httpcore.NetworkError: NetworkError,
+    httpcore.ConnectError: ConnectError,
+    httpcore.ReadError: ReadError,
+    httpcore.WriteError: WriteError,
+    httpcore.ProxyError: ProxyError,
+    httpcore.UnsupportedProtocol: UnsupportedProtocol,
+    httpcore.ProtocolError: ProtocolError,
+    httpcore.LocalProtocolError: LocalProtocolError,
+    httpcore.RemoteProtocolError: RemoteProtocolError,
+}
+
+
+class ResponseStream(SyncByteStream):
+    def __init__(self, httpcore_stream: typing.Iterable[bytes]) -> None:
+        self._httpcore_stream = httpcore_stream
+
+    def __iter__(self) -> typing.Iterator[bytes]:
+        with map_httpcore_exceptions():
+            for part in self._httpcore_stream:
+                yield part
+
+    def close(self) -> None:
+        if hasattr(self._httpcore_stream, "close"):
+            self._httpcore_stream.close()
+
+
+class HTTPTransport(BaseTransport):
+    def __init__(
+        self,
+        verify: VerifyTypes = True,
+        cert: CertTypes | None = None,
+        http1: bool = True,
+        http2: bool = False,
+        limits: Limits = DEFAULT_LIMITS,
+        trust_env: bool = True,
+        proxy: ProxyTypes | None = None,
+        uds: str | None = None,
+        local_address: str | None = None,
+        retries: int = 0,
+        socket_options: typing.Iterable[SOCKET_OPTION] | None = None,
+    ) -> None:
+        ssl_context = create_ssl_context(verify=verify, cert=cert, trust_env=trust_env)
+        proxy = Proxy(url=proxy) if isinstance(proxy, (str, URL)) else proxy
+
+        if proxy is None:
+            self._pool = httpcore.ConnectionPool(
+                ssl_context=ssl_context,
+                max_connections=limits.max_connections,
+                max_keepalive_connections=limits.max_keepalive_connections,
+                keepalive_expiry=limits.keepalive_expiry,
+                http1=http1,
+                http2=http2,
+                uds=uds,
+                local_address=local_address,
+                retries=retries,
+                socket_options=socket_options,
+            )
+        elif proxy.url.scheme in ("http", "https"):
+            self._pool = httpcore.HTTPProxy(
+                proxy_url=httpcore.URL(
+                    scheme=proxy.url.raw_scheme,
+                    host=proxy.url.raw_host,
+                    port=proxy.url.port,
+                    target=proxy.url.raw_path,
+                ),
+                proxy_auth=proxy.raw_auth,
+                proxy_headers=proxy.headers.raw,
+                ssl_context=ssl_context,
+                proxy_ssl_context=proxy.ssl_context,
+                max_connections=limits.max_connections,
+                max_keepalive_connections=limits.max_keepalive_connections,
+                keepalive_expiry=limits.keepalive_expiry,
+                http1=http1,
+                http2=http2,
+                socket_options=socket_options,
+            )
+        elif proxy.url.scheme == "socks5":
+            try:
+                import socksio  # noqa
+            except ImportError:  # pragma: no cover
+                raise ImportError(
+                    "Using SOCKS proxy, but the 'socksio' package is not installed. "
+                    "Make sure to install httpx using `pip install httpx[socks]`."
+                ) from None
+
+            self._pool = httpcore.SOCKSProxy(
+                proxy_url=httpcore.URL(
+                    scheme=proxy.url.raw_scheme,
+                    host=proxy.url.raw_host,
+                    port=proxy.url.port,
+                    target=proxy.url.raw_path,
+                ),
+                proxy_auth=proxy.raw_auth,
+                ssl_context=ssl_context,
+                max_connections=limits.max_connections,
+                max_keepalive_connections=limits.max_keepalive_connections,
+                keepalive_expiry=limits.keepalive_expiry,
+                http1=http1,
+                http2=http2,
+            )
+        else:  # pragma: no cover
+            raise ValueError(
+                "Proxy protocol must be either 'http', 'https', or 'socks5',"
+                f" but got {proxy.url.scheme!r}."
+            )
+
+    def __enter__(self: T) -> T:  # Use generics for subclass support.
+        self._pool.__enter__()
+        return self
+
+    def __exit__(
+        self,
+        exc_type: type[BaseException] | None = None,
+        exc_value: BaseException | None = None,
+        traceback: TracebackType | None = None,
+    ) -> None:
+        with map_httpcore_exceptions():
+            self._pool.__exit__(exc_type, exc_value, traceback)
+
+    def handle_request(
+        self,
+        request: Request,
+    ) -> Response:
+        assert isinstance(request.stream, SyncByteStream)
+
+        req = httpcore.Request(
+            method=request.method,
+            url=httpcore.URL(
+                scheme=request.url.raw_scheme,
+                host=request.url.raw_host,
+                port=request.url.port,
+                target=request.url.raw_path,
+            ),
+            headers=request.headers.raw,
+            content=request.stream,
+            extensions=request.extensions,
+        )
+        with map_httpcore_exceptions():
+            resp = self._pool.handle_request(req)
+
+        assert isinstance(resp.stream, typing.Iterable)
+
+        return Response(
+            status_code=resp.status,
+            headers=resp.headers,
+            stream=ResponseStream(resp.stream),
+            extensions=resp.extensions,
+        )
+
+    def close(self) -> None:
+        self._pool.close()
+
+
+class AsyncResponseStream(AsyncByteStream):
+    def __init__(self, httpcore_stream: typing.AsyncIterable[bytes]) -> None:
+        self._httpcore_stream = httpcore_stream
+
+    async def __aiter__(self) -> typing.AsyncIterator[bytes]:
+        with map_httpcore_exceptions():
+            async for part in self._httpcore_stream:
+                yield part
+
+    async def aclose(self) -> None:
+        if hasattr(self._httpcore_stream, "aclose"):
+            await self._httpcore_stream.aclose()
+
+
+class AsyncHTTPTransport(AsyncBaseTransport):
+    def __init__(
+        self,
+        verify: VerifyTypes = True,
+        cert: CertTypes | None = None,
+        http1: bool = True,
+        http2: bool = False,
+        limits: Limits = DEFAULT_LIMITS,
+        trust_env: bool = True,
+        proxy: ProxyTypes | None = None,
+        uds: str | None = None,
+        local_address: str | None = None,
+        retries: int = 0,
+        socket_options: typing.Iterable[SOCKET_OPTION] | None = None,
+    ) -> None:
+        ssl_context = create_ssl_context(verify=verify, cert=cert, trust_env=trust_env)
+        proxy = Proxy(url=proxy) if isinstance(proxy, (str, URL)) else proxy
+
+        if proxy is None:
+            self._pool = httpcore.AsyncConnectionPool(
+                ssl_context=ssl_context,
+                max_connections=limits.max_connections,
+                max_keepalive_connections=limits.max_keepalive_connections,
+                keepalive_expiry=limits.keepalive_expiry,
+                http1=http1,
+                http2=http2,
+                uds=uds,
+                local_address=local_address,
+                retries=retries,
+                socket_options=socket_options,
+            )
+        elif proxy.url.scheme in ("http", "https"):
+            self._pool = httpcore.AsyncHTTPProxy(
+                proxy_url=httpcore.URL(
+                    scheme=proxy.url.raw_scheme,
+                    host=proxy.url.raw_host,
+                    port=proxy.url.port,
+                    target=proxy.url.raw_path,
+                ),
+                proxy_auth=proxy.raw_auth,
+                proxy_headers=proxy.headers.raw,
+                proxy_ssl_context=proxy.ssl_context,
+                ssl_context=ssl_context,
+                max_connections=limits.max_connections,
+                max_keepalive_connections=limits.max_keepalive_connections,
+                keepalive_expiry=limits.keepalive_expiry,
+                http1=http1,
+                http2=http2,
+                socket_options=socket_options,
+            )
+        elif proxy.url.scheme == "socks5":
+            try:
+                import socksio  # noqa
+            except ImportError:  # pragma: no cover
+                raise ImportError(
+                    "Using SOCKS proxy, but the 'socksio' package is not installed. "
+                    "Make sure to install httpx using `pip install httpx[socks]`."
+                ) from None
+
+            self._pool = httpcore.AsyncSOCKSProxy(
+                proxy_url=httpcore.URL(
+                    scheme=proxy.url.raw_scheme,
+                    host=proxy.url.raw_host,
+                    port=proxy.url.port,
+                    target=proxy.url.raw_path,
+                ),
+                proxy_auth=proxy.raw_auth,
+                ssl_context=ssl_context,
+                max_connections=limits.max_connections,
+                max_keepalive_connections=limits.max_keepalive_connections,
+                keepalive_expiry=limits.keepalive_expiry,
+                http1=http1,
+                http2=http2,
+            )
+        else:  # pragma: no cover
+            raise ValueError(
+                "Proxy protocol must be either 'http', 'https', or 'socks5',"
+                " but got {proxy.url.scheme!r}."
+            )
+
+    async def __aenter__(self: A) -> A:  # Use generics for subclass support.
+        await self._pool.__aenter__()
+        return self
+
+    async def __aexit__(
+        self,
+        exc_type: type[BaseException] | None = None,
+        exc_value: BaseException | None = None,
+        traceback: TracebackType | None = None,
+    ) -> None:
+        with map_httpcore_exceptions():
+            await self._pool.__aexit__(exc_type, exc_value, traceback)
+
+    async def handle_async_request(
+        self,
+        request: Request,
+    ) -> Response:
+        assert isinstance(request.stream, AsyncByteStream)
+
+        req = httpcore.Request(
+            method=request.method,
+            url=httpcore.URL(
+                scheme=request.url.raw_scheme,
+                host=request.url.raw_host,
+                port=request.url.port,
+                target=request.url.raw_path,
+            ),
+            headers=request.headers.raw,
+            content=request.stream,
+            extensions=request.extensions,
+        )
+        with map_httpcore_exceptions():
+            resp = await self._pool.handle_async_request(req)
+
+        assert isinstance(resp.stream, typing.AsyncIterable)
+
+        return Response(
+            status_code=resp.status,
+            headers=resp.headers,
+            stream=AsyncResponseStream(resp.stream),
+            extensions=resp.extensions,
+        )
+
+    async def aclose(self) -> None:
+        await self._pool.aclose()

evalkit_tf437/lib/python3.10/site-packages/httpx/_transports/mock.py

@@ -0,0 +1,43 @@
+from __future__ import annotations
+
+import typing
+
+from .._models import Request, Response
+from .base import AsyncBaseTransport, BaseTransport
+
+SyncHandler = typing.Callable[[Request], Response]
+AsyncHandler = typing.Callable[[Request], typing.Coroutine[None, None, Response]]
+
+
+__all__ = ["MockTransport"]
+
+
+class MockTransport(AsyncBaseTransport, BaseTransport):
+    def __init__(self, handler: SyncHandler | AsyncHandler) -> None:
+        self.handler = handler
+
+    def handle_request(
+        self,
+        request: Request,
+    ) -> Response:
+        request.read()
+        response = self.handler(request)
+        if not isinstance(response, Response):  # pragma: no cover
+            raise TypeError("Cannot use an async handler in a sync Client")
+        return response
+
+    async def handle_async_request(
+        self,
+        request: Request,
+    ) -> Response:
+        await request.aread()
+        response = self.handler(request)
+
+        # Allow handler to *optionally* be an `async` function.
+        # If it is, then the `response` variable need to be awaited to actually
+        # return the result.
+
+        if not isinstance(response, Response):
+            response = await response
+
+        return response

evalkit_tf437/lib/python3.10/site-packages/importlib_metadata-8.5.0.dist-info/INSTALLER

@@ -0,0 +1 @@
+pip

evalkit_tf437/lib/python3.10/site-packages/markdown2-2.5.1.dist-info/LICENSE.txt

@@ -0,0 +1,59 @@
+This implementation of Markdown is licensed under the MIT License:
+
+    The MIT License
+
+    Copyright (c) 2012 Trent Mick
+    Copyright (c) 2010 ActiveState Software Inc.
+
+    Permission is hereby granted, free of charge, to any person obtaining a
+    copy of this software and associated documentation files (the
+    "Software"), to deal in the Software without restriction, including
+    without limitation the rights to use, copy, modify, merge, publish,
+    distribute, sublicense, and/or sell copies of the Software, and to permit
+    persons to whom the Software is furnished to do so, subject to the
+    following conditions:
+
+    The above copyright notice and this permission notice shall be included
+    in all copies or substantial portions of the Software.
+
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+    OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+    NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+    DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+    OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+    USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+
+All files in a *source package* of markdown2 (i.e. those available on
+pypi.python.org and the Google Code project "downloads" page) are under the
+MIT license.  However, in the *subversion repository* there are some files
+(used for performance and testing purposes) that are under different licenses
+as follows:
+
+- perf/recipes.pprint
+
+  Python License. This file includes a number of real-world examples of
+  Markdown from the ActiveState Python Cookbook, used for doing some
+  performance testing of markdown2.py.
+
+- test/php-markdown-cases/...
+  test/php-markdown-extra-cases/...
+
+  GPL. These are from the MDTest package announced here:
+  http://six.pairlist.net/pipermail/markdown-discuss/2007-July/000674.html
+
+- test/markdown.py
+
+  GPL 2 or BSD. A copy (currently old) of Python-Markdown -- the other
+  Python Markdown implementation.
+
+- test/markdown.php
+
+  BSD-style. This is PHP Markdown
+  (http://michelf.com/projects/php-markdown/).
+
+- test/Markdown.pl: BSD-style
+
+  A copy of Perl Markdown (http://daringfireball.net/projects/markdown/).
+

evalkit_tf437/lib/python3.10/site-packages/markdown2-2.5.1.dist-info/METADATA

@@ -0,0 +1,50 @@
+Metadata-Version: 2.1
+Name: markdown2
+Version: 2.5.1
+Summary: A fast and complete Python implementation of Markdown
+Home-page: https://github.com/trentm/python-markdown2
+Author: Trent Mick
+Author-email: trentm@gmail.com
+Maintainer: Trent Mick
+Maintainer-email: trentm@gmail.com
+License: MIT
+Platform: any
+Classifier: Development Status :: 5 - Production/Stable
+Classifier: Intended Audience :: Developers
+Classifier: License :: OSI Approved :: MIT License
+Classifier: Programming Language :: Python
+Classifier: Programming Language :: Python :: 3
+Classifier: Programming Language :: Python :: 3.8
+Classifier: Programming Language :: Python :: 3.9
+Classifier: Programming Language :: Python :: 3.10
+Classifier: Programming Language :: Python :: 3.11
+Classifier: Programming Language :: Python :: 3.12
+Classifier: Operating System :: OS Independent
+Classifier: Topic :: Software Development :: Libraries :: Python Modules
+Classifier: Topic :: Software Development :: Documentation
+Classifier: Topic :: Text Processing :: Filters
+Classifier: Topic :: Text Processing :: Markup :: HTML
+Requires-Python: >=3.8, <4
+Provides-Extra: all
+Requires-Dist: pygments (>=2.7.3) ; extra == 'all'
+Requires-Dist: wavedrom ; (python_version >= "3.7") and extra == 'all'
+Requires-Dist: latex2mathml ; (python_version >= "3.8.1") and extra == 'all'
+Provides-Extra: code_syntax_highlighting
+Requires-Dist: pygments (>=2.7.3) ; extra == 'code_syntax_highlighting'
+Provides-Extra: latex
+Requires-Dist: latex2mathml ; (python_version >= "3.8.1") and extra == 'latex'
+Provides-Extra: wavedrom
+Requires-Dist: wavedrom ; (python_version >= "3.7") and extra == 'wavedrom'
+
+markdown2: A fast and complete Python implementation of Markdown.
+
+Markdown is a text-to-HTML filter; it translates an easy-to-read /
+easy-to-write structured text format into HTML.  Markdown's text
+format is most similar to that of plain text email, and supports
+features such as headers, *emphasis*, code blocks, blockquotes, and
+links.  -- http://daringfireball.net/projects/markdown/
+
+This is a fast and complete Python implementation of the Markdown
+spec. See http://github.com/trentm/python-markdown2 for more info.
+
+

evalkit_tf437/lib/python3.10/site-packages/markdown2-2.5.1.dist-info/RECORD

@@ -0,0 +1,11 @@
+../../../bin/markdown2,sha256=S5hJ8xWq_xBepC36ry9oYuYgLUwrlSGy1LdtYmhaWSw,227
+__pycache__/markdown2.cpython-310.pyc,,
+markdown2-2.5.1.dist-info/INSTALLER,sha256=zuuue4knoyJ-UwPPXg8fezS7VCrXJQrAP7zeNuwvFQg,4
+markdown2-2.5.1.dist-info/LICENSE.txt,sha256=-MfE1VRAnPYhuNZT2__7cZdF_Tb1xJuDBSWGSbQD75w,2313
+markdown2-2.5.1.dist-info/METADATA,sha256=iHoNmgM5F9LLbWr_9NP5VllDoYDTAHYMXmIkDZulBM0,2168
+markdown2-2.5.1.dist-info/RECORD,,
+markdown2-2.5.1.dist-info/REQUESTED,sha256=47DEQpj8HBSa-_TImW-5JCeuQeRkm5NMpJWZG3hSuFU,0
+markdown2-2.5.1.dist-info/WHEEL,sha256=bb2Ot9scclHKMOLDEHY6B2sicWOgugjFKaJsT7vwMQo,110
+markdown2-2.5.1.dist-info/entry_points.txt,sha256=ZAfeiSjZzwRSLJYMNAPOV-cMgZhEAVdrjG_E3wF0kz4,46
+markdown2-2.5.1.dist-info/top_level.txt,sha256=fDjZIsBNbTniMxzHsMuRyzfmvWbBOoUklf6ycVKreNc,10
+markdown2.py,sha256=cJ4alw5f79UduTFwGynQe3n79NnP4dq5bUKytWNBcTg,161240

evalkit_tf437/lib/python3.10/site-packages/markdown2-2.5.1.dist-info/entry_points.txt

@@ -0,0 +1,3 @@
+[console_scripts]
+markdown2 = markdown2:main
+

evalkit_tf437/lib/python3.10/site-packages/oauthlib-3.2.2.dist-info/INSTALLER

@@ -0,0 +1 @@
+pip

evalkit_tf437/lib/python3.10/site-packages/oauthlib-3.2.2.dist-info/top_level.txt

@@ -0,0 +1 @@
+oauthlib

evalkit_tf437/lib/python3.10/site-packages/opencv_python-4.10.0.84.dist-info/top_level.txt

@@ -0,0 +1 @@
+cv2

evalkit_tf437/lib/python3.10/site-packages/packaging-24.2.dist-info/INSTALLER

@@ -0,0 +1 @@
+pip

evalkit_tf437/lib/python3.10/site-packages/packaging-24.2.dist-info/LICENSE

@@ -0,0 +1,3 @@
+This software is made available under the terms of *either* of the licenses
+found in LICENSE.APACHE or LICENSE.BSD. Contributions to this software is made
+under the terms of *both* these licenses.

evalkit_tf437/lib/python3.10/site-packages/packaging-24.2.dist-info/LICENSE.APACHE

@@ -0,0 +1,177 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
+      the copyright owner. For the purposes of this definition, "submitted"
+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      copyright license to reproduce, prepare Derivative Works of,
+      publicly display, publicly perform, sublicense, and distribute the
+      Work and such Derivative Works in Source or Object form.
+
+   3. Grant of Patent License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
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+      whether in tort (including negligence), contract, or otherwise,
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+
+   END OF TERMS AND CONDITIONS

evalkit_tf437/lib/python3.10/site-packages/packaging-24.2.dist-info/METADATA

@@ -0,0 +1,102 @@
+Metadata-Version: 2.3
+Name: packaging
+Version: 24.2
+Summary: Core utilities for Python packages
+Author-email: Donald Stufft <donald@stufft.io>
+Requires-Python: >=3.8
+Description-Content-Type: text/x-rst
+Classifier: Development Status :: 5 - Production/Stable
+Classifier: Intended Audience :: Developers
+Classifier: License :: OSI Approved :: Apache Software License
+Classifier: License :: OSI Approved :: BSD License
+Classifier: Programming Language :: Python
+Classifier: Programming Language :: Python :: 3
+Classifier: Programming Language :: Python :: 3 :: Only
+Classifier: Programming Language :: Python :: 3.8
+Classifier: Programming Language :: Python :: 3.9
+Classifier: Programming Language :: Python :: 3.10
+Classifier: Programming Language :: Python :: 3.11
+Classifier: Programming Language :: Python :: 3.12
+Classifier: Programming Language :: Python :: 3.13
+Classifier: Programming Language :: Python :: Implementation :: CPython
+Classifier: Programming Language :: Python :: Implementation :: PyPy
+Classifier: Typing :: Typed
+Project-URL: Documentation, https://packaging.pypa.io/
+Project-URL: Source, https://github.com/pypa/packaging
+
+packaging
+=========
+
+.. start-intro
+
+Reusable core utilities for various Python Packaging
+`interoperability specifications <https://packaging.python.org/specifications/>`_.
+
+This library provides utilities that implement the interoperability
+specifications which have clearly one correct behaviour (eg: :pep:`440`)
+or benefit greatly from having a single shared implementation (eg: :pep:`425`).
+
+.. end-intro
+
+The ``packaging`` project includes the following: version handling, specifiers,
+markers, requirements, tags, utilities.
+
+Documentation
+-------------
+
+The `documentation`_ provides information and the API for the following:
+
+- Version Handling
+- Specifiers
+- Markers
+- Requirements
+- Tags
+- Utilities
+
+Installation
+------------
+
+Use ``pip`` to install these utilities::
+
+    pip install packaging
+
+The ``packaging`` library uses calendar-based versioning (``YY.N``).
+
+Discussion
+----------
+
+If you run into bugs, you can file them in our `issue tracker`_.
+
+You can also join ``#pypa`` on Freenode to ask questions or get involved.
+
+
+.. _`documentation`: https://packaging.pypa.io/
+.. _`issue tracker`: https://github.com/pypa/packaging/issues
+
+
+Code of Conduct
+---------------
+
+Everyone interacting in the packaging project's codebases, issue trackers, chat
+rooms, and mailing lists is expected to follow the `PSF Code of Conduct`_.
+
+.. _PSF Code of Conduct: https://github.com/pypa/.github/blob/main/CODE_OF_CONDUCT.md
+
+Contributing
+------------
+
+The ``CONTRIBUTING.rst`` file outlines how to contribute to this project as
+well as how to report a potential security issue. The documentation for this
+project also covers information about `project development`_ and `security`_.
+
+.. _`project development`: https://packaging.pypa.io/en/latest/development/
+.. _`security`: https://packaging.pypa.io/en/latest/security/
+
+Project History
+---------------
+
+Please review the ``CHANGELOG.rst`` file or the `Changelog documentation`_ for
+recent changes and project history.
+
+.. _`Changelog documentation`: https://packaging.pypa.io/en/latest/changelog/
+

evalkit_tf437/lib/python3.10/site-packages/packaging-24.2.dist-info/RECORD

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evalkit_tf437/lib/python3.10/site-packages/packaging-24.2.dist-info/WHEEL

@@ -0,0 +1,4 @@
+Wheel-Version: 1.0
+Generator: flit 3.10.1
+Root-Is-Purelib: true
+Tag: py3-none-any

evalkit_tf437/lib/python3.10/site-packages/pygments/__main__.py

@@ -0,0 +1,17 @@
+"""
+    pygments.__main__
+    ~~~~~~~~~~~~~~~~~
+
+    Main entry point for ``python -m pygments``.
+
+    :copyright: Copyright 2006-2024 by the Pygments team, see AUTHORS.
+    :license: BSD, see LICENSE for details.
+"""
+
+import sys
+import pygments.cmdline
+
+try:
+    sys.exit(pygments.cmdline.main(sys.argv))
+except KeyboardInterrupt:
+    sys.exit(1)

evalkit_tf437/lib/python3.10/site-packages/pygments/formatter.py

@@ -0,0 +1,129 @@
+"""
+    pygments.formatter
+    ~~~~~~~~~~~~~~~~~~
+
+    Base formatter class.
+
+    :copyright: Copyright 2006-2024 by the Pygments team, see AUTHORS.
+    :license: BSD, see LICENSE for details.
+"""
+
+import codecs
+
+from pygments.util import get_bool_opt
+from pygments.styles import get_style_by_name
+
+__all__ = ['Formatter']
+
+
+def _lookup_style(style):
+    if isinstance(style, str):
+        return get_style_by_name(style)
+    return style
+
+
+class Formatter:
+    """
+    Converts a token stream to text.
+
+    Formatters should have attributes to help selecting them. These
+    are similar to the corresponding :class:`~pygments.lexer.Lexer`
+    attributes.
+
+    .. autoattribute:: name
+       :no-value:
+
+    .. autoattribute:: aliases
+       :no-value:
+
+    .. autoattribute:: filenames
+       :no-value:
+
+    You can pass options as keyword arguments to the constructor.
+    All formatters accept these basic options:
+
+    ``style``
+        The style to use, can be a string or a Style subclass
+        (default: "default"). Not used by e.g. the
+        TerminalFormatter.
+    ``full``
+        Tells the formatter to output a "full" document, i.e.
+        a complete self-contained document. This doesn't have
+        any effect for some formatters (default: false).
+    ``title``
+        If ``full`` is true, the title that should be used to
+        caption the document (default: '').
+    ``encoding``
+        If given, must be an encoding name. This will be used to
+        convert the Unicode token strings to byte strings in the
+        output. If it is "" or None, Unicode strings will be written
+        to the output file, which most file-like objects do not
+        support (default: None).
+    ``outencoding``
+        Overrides ``encoding`` if given.
+
+    """
+
+    #: Full name for the formatter, in human-readable form.
+    name = None
+
+    #: A list of short, unique identifiers that can be used to lookup
+    #: the formatter from a list, e.g. using :func:`.get_formatter_by_name()`.
+    aliases = []
+
+    #: A list of fnmatch patterns that match filenames for which this
+    #: formatter can produce output. The patterns in this list should be unique
+    #: among all formatters.
+    filenames = []
+
+    #: If True, this formatter outputs Unicode strings when no encoding
+    #: option is given.
+    unicodeoutput = True
+
+    def __init__(self, **options):
+        """
+        As with lexers, this constructor takes arbitrary optional arguments,
+        and if you override it, you should first process your own options, then
+        call the base class implementation.
+        """
+        self.style = _lookup_style(options.get('style', 'default'))
+        self.full = get_bool_opt(options, 'full', False)
+        self.title = options.get('title', '')
+        self.encoding = options.get('encoding', None) or None
+        if self.encoding in ('guess', 'chardet'):
+            # can happen for e.g. pygmentize -O encoding=guess
+            self.encoding = 'utf-8'
+        self.encoding = options.get('outencoding') or self.encoding
+        self.options = options
+
+    def get_style_defs(self, arg=''):
+        """
+        This method must return statements or declarations suitable to define
+        the current style for subsequent highlighted text (e.g. CSS classes
+        in the `HTMLFormatter`).
+
+        The optional argument `arg` can be used to modify the generation and
+        is formatter dependent (it is standardized because it can be given on
+        the command line).
+
+        This method is called by the ``-S`` :doc:`command-line option <cmdline>`,
+        the `arg` is then given by the ``-a`` option.
+        """
+        return ''
+
+    def format(self, tokensource, outfile):
+        """
+        This method must format the tokens from the `tokensource` iterable and
+        write the formatted version to the file object `outfile`.
+
+        Formatter options can control how exactly the tokens are converted.
+        """
+        if self.encoding:
+            # wrap the outfile in a StreamWriter
+            outfile = codecs.lookup(self.encoding)[3](outfile)
+        return self.format_unencoded(tokensource, outfile)
+
+    # Allow writing Formatter[str] or Formatter[bytes]. That's equivalent to
+    # Formatter. This helps when using third-party type stubs from typeshed.
+    def __class_getitem__(cls, name):
+        return cls