@abc.abstractmethod<EOL><INDENT>def register_for_changed_proficiencies_by_genus_type(self, proficiency_genus_type):<DEDENT>
pass<EOL>
Registers for notification of updated proficiencies of the given genus type.

        ``ProficiencyReceiver.changedProficiencies()`` is invoked when a
        proficiency in this objective bank is changed.

        :param proficiency_genus_type: the genus type of the ``Proficiency`` to monitor
        :type proficiency_genus_type: ``osid.type.Type``
        :raise: ``NullArgument`` -- ``proficiency_genus_t_ype`` is ``null``
        :raise: ``OperationFailed`` -- unable to complete request
        :raise: ``PermissionDenied`` -- authorization failure

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