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# Copyright (c) Alibaba, Inc. and its affiliates.
from dataclasses import asdict, dataclass, field
from typing import Any, Dict, List, Optional, Union
import json
from PIL import Image
from swift.utils import get_logger
from ..utils import Messages, Tool, messages_to_history
logger = get_logger()
@dataclass
class InferRequest:
"""
messages: Input in messages format.
Examples: [{
"role": "user", # or assistant/system/role
"content": [ # str or List[Dict[str, Any]]
{
"type": "image", # or audio/video
"image": "<url/path/base64/PIL.Image>",
},
{"type": "text", "text": "Please describe the picture."},
],
}]
The above content is equivalent to:
[{"role": "user", "content": "<image>Please describe the picture."}]
and additionally passing in images: ["<url/path/base64/PIL.Image>"].
tools: Organize tools into the format of agent_template for system. for example, 'react_en'.
"""
messages: Messages
images: List[Union[str, Image.Image]] = field(default_factory=list)
audios: List[str] = field(default_factory=list)
videos: List[str] = field(default_factory=list)
tools: Optional[List[Tool]] = None
objects: Dict[str, List[Any]] = field(default_factory=dict)
def __post_init__(self):
for key in ['images', 'audios', 'videos']:
val = getattr(self, key)
if isinstance(val, str):
setattr(self, key, [val])
assert isinstance(self.messages, list), f'messages: {self.messages}'
@staticmethod
def remove_response(messages) -> Optional[str]:
last_role = messages[-1]['role'] if messages else None
if last_role == 'assistant':
return messages.pop()['content']
@staticmethod
def _to_printable(obj, key: Optional[str] = None):
if isinstance(obj, str) and key not in {'content', 'text'} and len(obj) >= 1000:
return f'<<<base64:{obj[:50]}..>>>'
elif isinstance(obj, list):
res = []
for item in obj:
res.append(InferRequest._to_printable(item))
return res
elif isinstance(obj, dict):
res = {}
for k, v in obj.items():
res[k] = InferRequest._to_printable(v, key=k)
return res
return obj
def to_printable(self):
return InferRequest._to_printable(asdict(self))
@dataclass
class RolloutInferRequest(InferRequest):
"""
A request class that modifies the 'images' attribute
to be a list of strings for compatibility with POST requests.
The strings can represent image URLs or Base64 encoded images.
"""
images: List[str] = field(default_factory=list)
@dataclass
class TemplateInputs(InferRequest):
"""The training functionality has been added on top of the InferRequest.
objects: Used for grounding tasks in a general format.
"""
rejected_response: Optional[str] = None
label: Optional[bool] = None
@dataclass
class StdTemplateInputs:
# only user/tool/assistant
messages: List[Dict[str, str]]
# None: use default system; '': not use system
system: Optional[str] = None
tools: Optional[List[Tool]] = None
rejected_response: Optional[str] = None
label: Optional[int] = None
images: List[Union[str, Image.Image]] = field(default_factory=list)
audios: List[str] = field(default_factory=list)
videos: List[str] = field(default_factory=list)
objects: Dict[str, List[Any]] = field(default_factory=dict)
def __post_init__(self):
self.image_idx = 0
self.audio_idx = 0
self.video_idx = 0
self.ref_idx = 0
self.bbox_idx = 0
if self.images and not isinstance(self.images, (list, tuple)):
self.images = [self.images]
if self.videos and not isinstance(self.videos, (list, tuple)):
self.videos = [self.videos]
if self.audios and not isinstance(self.audios, (list, tuple)):
self.audios = [self.audios]
def to_history(self):
if not self.messages:
return None
return messages_to_history(self.messages)
@property
def is_multimodal(self):
return bool(self.images or self.audios or self.videos or self.objects)
@classmethod
def from_dict(cls, inputs: Dict[str, Any]) -> 'StdTemplateInputs':
kwargs = {}
for key in ['rejected_response', 'label']:
if key in inputs:
kwargs[key] = inputs[key]
messages = inputs['messages']
tools = inputs.get('tools')
objects = inputs.get('objects') or {}
if messages and messages[0]['role'] == 'system':
message = messages.pop(0)
system = message['content']
else:
system = None
for message in messages:
if message['role'] == 'tool_response':
message['role'] = 'tool'
if message['role'] in {'tool_call', 'tool'} and not isinstance(message['content'], str):
message['content'] = json.dumps(message['content'], ensure_ascii=False)
media_kwargs = StdTemplateInputs.remove_messages_media(messages)
for k in list(media_kwargs.keys()):
mm_data = media_kwargs[k]
inputs_mm_data = inputs.get(k)
if isinstance(inputs_mm_data, str):
inputs_mm_data = [inputs_mm_data]
inputs_mm_data = (inputs_mm_data or []).copy()
if mm_data:
assert not inputs_mm_data, f'self.{k}: {inputs_mm_data}'
else:
media_kwargs[k] = inputs_mm_data
return cls(messages=messages, system=system, tools=tools, objects=objects, **kwargs, **media_kwargs)
@staticmethod
def remove_messages_media(messages: Messages) -> Dict[str, Any]:
res = {'images': [], 'audios': [], 'videos': []}
for message in messages:
content = message['content']
if isinstance(content, str):
continue
# List[Dict[str, Any]]
new_content = ''
for item in content:
key: str = item['type']
value = item.get(key)
if key == 'text':
new_content += value
continue
# image/audio/video
# image_url/audio_url/video_url
if key.endswith('_url'):
key = key[:-len('_url')]
new_content += f'<{key}>'
if isinstance(value, dict):
value = value['url']
if value:
res[f'{key}s'].append(value)
message['content'] = new_content
return res
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