docstr: Returns a dictionary containing the state of the accountant.
  Args:
      destination: a mappable object to populate the current state_dict into.
          If this arg is None, an OrderedDict is created and populated.
          Default: None
docstr_tok: ["Returns","a","dictionary","containing","the","state","of","the","accountant",".","Args",":","destination",":","a","mappable","object","to","populate","the","current","state_dict","into",".","If","this","arg","is","None",",","an","OrderedDict","is","created","and","populated",".","Default",":","None"]
code: def state_dict(
      self, destination: T_state_dict = None
  ) -> T_state_dict:
      """
      Returns a dictionary containing the state of the accountant.
      Args:
          destination: a mappable object to populate the current state_dict into.
              If this arg is None, an OrderedDict is created and populated.
              Default: None
      """
      if destination is None:
          destination = OrderedDict()
      destination["history"] = deepcopy(self.history)
      destination["mechanism"] = self.__class__.mechanism
      return destination
  
file_path: opacus/opacus/accountants/accountant.py
imports: import abc
  from collections import OrderedDict
  from copy import deepcopy
  from typing import Any, Callable, Mapping, TypeVar
  from opacus.optimizers import DPOptimizer
label_desc: Use image node_id 7 for calling the IAccountant obj's underlying member method code with example usage: obj.state_dict(destination) and returns: destination