code: def is_authenticated_athlete(self):
          
          if self._is_authenticated is None:
              if self.resource_state == DETAILED:
                  # If the athlete is in detailed state it must be the authenticated athlete
                  self._is_authenticated = True
              else:
                  # We need to check this athlete's id matches the authenticated athlete's id
                  self.assert_bind_client()
                  authenticated_athlete = self.bind_client.get_athlete()
                  self._is_authenticated = authenticated_athlete.id == self.id
          return self._is_authenticated
docs: :return: Boolean as to whether the athlete is the authenticated athlete.