wish to be squeezed.
Parameters:
      * input (Tensor) -- the input tensor.
  * **dim** (*int** or **tuple of ints**, **optional*) --

    if given, the input will be squeezed
       only in the specified dimensions.

    Changed in version 2.0: "dim" now accepts tuples of
    dimensions.

Example:
  >>> x = torch.zeros(2, 1, 2, 1, 2)
  >>> x.size()
  torch.Size([2, 1, 2, 1, 2])
  >>> y = torch.squeeze(x)
  >>> y.size()
  torch.Size([2, 2, 2])
  >>> y = torch.squeeze(x, 0)
  >>> y.size()
  torch.Size([2, 1, 2, 1, 2])
  >>> y = torch.squeeze(x, 1)
  >>> y.size()
  torch.Size([2, 2, 1, 2])
  >>> y = torch.squeeze(x, (1, 2, 3))
  torch.Size([2, 2, 2])
