code: def __call__(self, pf):
      if pf.type == "Identity":
          if self.is_required:
              if not self.is_required(pf):
                  return
          remove_function(pf, self.renamed)
  
imports: from nnabla.logger import logger
label_desc: Use image node_id 2 for calling the IdentityRemover obj's underlying member method code with example usage: obj.__call__(pf) without return types