docstr: Sets the device to use for the backend.
  
  Sets the device value on the class. Any subsequent calls to the backend will use this device.
docstr_tok: ["Sets","the","device","to","use","for","the","backend",".","Sets","the","device","value","on","the","class",".","Any","subsequent","calls","to","the","backend","will","use","this","device","."]
code: def set_device(device: Union[str, None] = None) -> None:
      """Sets the device to use for the backend.
  
      Sets the device value on the class. Any subsequent calls to the backend will use this device.
      """
      if device is None or isinstance(device, str):
          _TensorFlowBackend.device = device
      else:
          raise TypeError(
              f"`device` must be a `string` or ``None``. Got {type(device)} instead."
          )
  
file_path: alibi/alibi/explainers/similarity/backends/tensorflow/base.py
imports: from typing import Any, Callable, List, Optional, Union
  import numpy
  import tensorflow
  from tensorflow import keras
label_desc: Use image node_id 4 for calling the _TensorFlowBackend obj's underlying member method code with example usage: obj.set_device(device) without return types