code: def __call__(self, x, train):
      if not train:
          return x
      return super().__call__(x)
  
file_path: espnet/espnet/transform/spec_augment.py
imports: import random
  import numpy
  from espnet.transform.functional import FuncTrans
label_desc: Use image node_id 1 for calling the TimeWarp obj's underlying member method code with example usage: obj.__call__(x, train) and returns: super, x