Load actions from an entry point group.

        :param entry_point_group: The entrypoint for extensions.

def load_entry_point_actions(self, entry_point_group):
        """Load actions from an entry point group.

        :param entry_point_group: The entrypoint for extensions.
        """
        for ep in pkg_resources.iter_entry_points(group=entry_point_group):
            self.register_action(ep.load())