original_docstring: 
          This gets implemented in the subclasses. Don't implement this here.
          
docstring: This gets implemented in the subclasses. Don't implement this here.
docstring_tokens: This gets implemented in the subclasses . Don ' t implement this here .
code: def _optimize(self, predicted_answers, true_answers):
          """
          This gets implemented in the subclasses. Don't implement this here.
          """
          raise NotImplementedError()
code_tokens: def _optimize ( self , predicted_answers , true_answers ) : raise NotImplementedError ( )
short_docstring: This gets implemented in the subclasses.
short_docstring_tokens: This gets implemented in the subclasses .
comment: """
          This gets implemented in the subclasses. Don't implement this here.
          """