docstr: Called to teardown the callback at end of training
docstr_tok: ["Called","to","teardown","the","callback","at","end","of","training"]
code: def teardown(self, **kwargs) -> None:
      """Called to teardown the callback at end of training"""
      for callback in self.callbacks:
          callback.teardown(**kwargs)
  
imports: from abc import ABC
  from typing import List
  from mmf.trainers.callbacks.base import Callback
label_desc: Use image node_id 1 for calling the TrainerCallbackHookMixin obj's underlying member method code with example usage: obj.teardown() without return types