def scores_insert(self, request):
        """Exposes an API endpoint to insert a score for the current user.

        Args:
            request: An instance of ScoreRequestMessage parsed from the API
                request.

        Returns:
            An instance of ScoreResponseMessage containing the score inserted,
            the time the score was inserted and the ID of the score.
        """
        entity = Score.put_from_message(request)
        return entity.to_message()