parameters: (self)
return_statement: return self._history_map
docstring: The map that records all the tensors needed for backprop.
docstring_summary: The map that records all the tensors needed for backprop.
docstring_tokens: The map that records all the tensors needed for backprop .
function: def history_map(self):
      """The map that records all the tensors needed for backprop."""
      return self._history_map
function_tokens: def history_map ( self ) : return self . _history_map