@utilities.arguments_not_none<EOL><INDENT>def get_explicit_authorization(self, authorization_id):<DEDENT>
raise errors.Unimplemented()<EOL>
Gets the explicit ``Authorization`` that generated the given implicit authorization.

        If the given ``Authorization`` is explicit, then the same
        ``Authorization`` is returned.

        arg:    authorization_id (osid.id.Id): an authorization
        return: (osid.authorization.Authorization) - the explicit
                ``Authorization``
        raise:  NotFound - ``authorization_id`` is not found
        raise:  NullArgument - ``authorization_id`` is ``null``
        raise:  OperationFailed - unable to complete request
        raise:  PermissionDenied - authorization failure
        *compliance: mandatory -- This method must be implemented.*