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edit//Qwen3-TTS-test//.venv//Lib//site-packages//torch//mps//event.py

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+# mypy: allow-untyped-defs
+import torch
+
+
+class Event:
+    r"""Wrapper around an MPS event.
+
+    MPS events are synchronization markers that can be used to monitor the
+    device's progress, to accurately measure timing, and to synchronize MPS streams.
+
+    Args:
+        enable_timing (bool, optional): indicates if the event should measure time
+            (default: ``False``)
+    """
+
+    def __init__(self, enable_timing=False):
+        self.__eventId = torch._C._mps_acquireEvent(enable_timing)
+
+    def __del__(self):
+        # checks if torch._C is already destroyed
+        if hasattr(torch._C, "_mps_releaseEvent") and self.__eventId > 0:
+            torch._C._mps_releaseEvent(self.__eventId)
+
+    def record(self):
+        r"""Records the event in the default stream."""
+        torch._C._mps_recordEvent(self.__eventId)
+
+    def wait(self):
+        r"""Makes all future work submitted to the default stream wait for this event."""
+        torch._C._mps_waitForEvent(self.__eventId)
+
+    def query(self):
+        r"""Returns True if all work currently captured by event has completed."""
+        return torch._C._mps_queryEvent(self.__eventId)
+
+    def synchronize(self):
+        r"""Waits until the completion of all work currently captured in this event.
+        This prevents the CPU thread from proceeding until the event completes.
+        """
+        torch._C._mps_synchronizeEvent(self.__eventId)
+
+    def elapsed_time(self, end_event):
+        r"""Returns the time elapsed in milliseconds after the event was
+        recorded and before the end_event was recorded.
+        """
+        return torch._C._mps_elapsedTimeOfEvents(self.__eventId, end_event.__eventId)