code: def __init__(self, blank=-1):
      super().__init__()
      self.blank = blank
  
imports: import random
  import unittest
  import numpy
  import torch
  from torchaudio.functional import rnnt_loss
label_desc: Use image node_id 1 to create a new NumpyTransducerLoss object from inherited base classes: torch.nn with example: obj = NumpyTransducerLoss(blank)