def get_objective_requisite_session(self):
raise Unimplemented()<EOL>
Gets the session for examining objective requisites.

        return: (osid.learning.ObjectiveRequisiteSession) - an
                ``ObjectiveRequisiteSession``
        raise:  OperationFailed - unable to complete request
        raise:  Unimplemented - ``supports_objective_requisite()`` is
                ``false``
        *compliance: optional -- This method must be implemented if
        ``supports_objective_requisite()`` is ``true``.*