return half of results to avoid redundancy for real inputs.
        Default: "True" for real "input" and "window", "False"
        otherwise.
  * **return_complex** (*bool**, **optional*) --

    whether to return a complex tensor, or a real tensor with an
    extra last dimension for the real and imaginary components.

    Changed in version 2.0: "return_complex" is now a required
    argument for real inputs, as the default is being transitioned
    to "True".

    Deprecated since version 2.0: "return_complex=False" is
    deprecated, instead use "return_complex=True" Note that
    calling "torch.view_as_real()" on the output will recover the
    deprecated output format.

Returns:
      A tensor containing the STFT result with shape described above
Return type:
      Tensor