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edit//Qwen3-TTS-test//.venv//Lib//site-packages//torch//mtia//_utils.py

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+from typing import Any
+
+import torch
+
+# The _get_device_index has been moved to torch.utils._get_device_index
+from torch._utils import _get_device_index as _torch_get_device_index
+
+
+def _get_device_index(
+    device: Any, optional: bool = False, allow_cpu: bool = False
+) -> int:
+    r"""Get the device index from :attr:`device`, which can be a torch.device object, a Python integer, or ``None``.
+
+    If :attr:`device` is a torch.device object, returns the device index if it
+    is a MTIA device. Note that for a MTIA device without a specified index,
+    i.e., ``torch.device('mtia')``, this will return the current default MTIA
+    device if :attr:`optional` is ``True``. If :attr:`allow_cpu` is ``True``,
+    CPU devices will be accepted and ``-1`` will be returned in this case.
+
+    If :attr:`device` is a Python integer, it is returned as is.
+
+    If :attr:`device` is ``None``, this will return the current default MTIA
+    device if :attr:`optional` is ``True``.
+    """
+    if isinstance(device, int):
+        return device
+    if isinstance(device, str):
+        device = torch.device(device)
+    if isinstance(device, torch.device):
+        if allow_cpu:
+            if device.type not in ["mtia", "cpu"]:
+                raise ValueError(f"Expected a mtia or cpu device, but got: {device}")
+        elif device.type != "mtia":
+            raise ValueError(f"Expected a mtia device, but got: {device}")
+    if not torch.jit.is_scripting():
+        if isinstance(device, torch.mtia.device):
+            return device.idx
+    return _torch_get_device_index(device, optional, allow_cpu)