def get_activity_query_session_for_objective_bank(self, objective_bank_id=None):
if objective_bank_id is None:<EOL><INDENT>raise NullArgument<EOL><DEDENT>raise Unimplemented()<EOL>
Gets the ``OsidSession`` associated with the activity query service for the given objective bank.

        arg:    objective_bank_id (osid.id.Id): the ``Id`` of the
                objective bank
        return: (osid.learning.ActivityQuerySession) - an
                ``ActivityQuerySession``
        raise:  NotFound - ``objective_bank_id`` not found
        raise:  NullArgument - ``objective_bank_id`` is ``null``
        raise:  OperationFailed - ``unable to complete request``
        raise:  Unimplemented - ``supports_activity_query()`` or
                ``supports_visible_federation()`` is ``false``
        *compliance: optional -- This method must be implemented if
        ``supports_activity_query()`` and
        ``supports_visible_federation()`` are ``true``.*