original_docstring: 
          The list of all episode lengths of each volley of all the validation volleys already executed.
          It is None if experiment is not setup.
          It is empty if no validation volley has finished execution.
          
docstring: The list of all episode lengths of each volley of all the validation volleys already executed.
  It is None if experiment is not setup.
  It is empty if no validation volley has finished execution.
docstring_tokens: The list of all episode lengths of each volley of all the validation volleys already executed . It is None if experiment is not setup . It is empty if no validation volley has finished execution .
code: def validation_episode_lengths(self) -> [] or None:
          """
          The list of all episode lengths of each volley of all the validation volleys already executed.
          It is None if experiment is not setup.
          It is empty if no validation volley has finished execution.
          """
          return self._validation_episode_lengths
code_tokens: def validation_episode_lengths ( self ) -> [ ] or None : return self . _validation_episode_lengths
short_docstring: The list of all episode lengths of each volley of all the validation volleys already executed.
short_docstring_tokens: The list of all episode lengths of each volley of all the validation volleys already executed .
comment: """
          The list of all episode lengths of each volley of all the validation volleys already executed.
          It is None if experiment is not setup.
          It is empty if no validation volley has finished execution.
          """