docstr: Torch based STFT operation 
docstr_tok: ["Torch","based","STFT","operation"]
code: def __init__(
      self, n_fft, hop_length, win_length, window="hann_window"
  ):
      """Torch based STFT operation"""
      super(TorchSTFT, self).__init__()
      self.n_fft = n_fft
      self.hop_length = hop_length
      self.win_length = win_length
      self.window = nn.Parameter(
          getattr(torch, window)(win_length), requires_grad=False
      )
  
imports: import torch
  from torch import nn
  from torch.nn import functional
label_desc: Use image node_id 1 to create a new TorchSTFT object from inherited base classes: nn with example: obj = TorchSTFT(n_fft, hop_length, win_length, window)