code: def __call__(self, grads):
      self.__self__._grads = grads
      return None
  
imports: import functools
  from typing import Callable
  import ivy
  import ivy.functional.frontends.torch
label_desc: Use image node_id 4 for calling the AccumulateGrad obj's underlying member method code with example usage: obj.__call__(grads) and returns: None