def set_label(self, s, label):
        self.state.body_labels[self.bodies[self.index].segment_id] = label
        self.set_index(self.index + 1)
def get_metrics(self):
        """Returns the stored metrics.

        The metrics are type checked against the set schema.

        Returns:
          Dictionary of metrics data in the format of the set schema.
        """
        artifact_utils.verify_schema_instance(self._schema, self._values)
        return self._values