@abc.abstractmethod<EOL><INDENT>def can_update_schedules(self):<DEDENT>
return<EOL>
Tests if this user can update ``Schedules``.

        A return of true does not guarantee successful authorization. A
        return of false indicates that it is known updating a
        ``Schedule`` will result in a ``PermissionDenied``. This is
        intended as a hint to an application that may opt not to offer
        update operations to an unauthorized user.

        :return: ``false`` if schedule modification is not authorized, ``true`` otherwise
        :rtype: ``boolean``


        *compliance: mandatory -- This method must be implemented.*