Get the scopes corresponding to admin / read-only state.

        Returns:
            Tuple[str, ...]: The tuple of scopes.

def _get_scopes(self):
        """Get the scopes corresponding to admin / read-only state.

        Returns:
            Tuple[str, ...]: The tuple of scopes.
        """
        if self._read_only:
            scopes = (READ_ONLY_SCOPE,)
        else:
            scopes = (DATA_SCOPE,)

        if self._admin:
            scopes += (ADMIN_SCOPE,)

        return scopes