def get_instance(self, id):
return self._get_element_by_id('<STR_LIT>', Instance, id)<EOL>
Retrieves available instance matching a specific instance ID.

        Args:
            id (str): Instance identifier to retrieve.

        Returns:
            :py:class:`~.rest_primitives.Instance`: Instance matching `id`.

        Raises:
            ValueError: No matching instance exists or multiple matching instances exist.