@utilities.remove_null_proxy_kwarg<EOL><INDENT>@utilities.arguments_not_none<EOL>def get_activity_admin_session_for_objective_bank(self, objective_bank_id):<DEDENT>
if not self.supports_activity_admin():<EOL><INDENT>raise errors.Unimplemented()<EOL><DEDENT>return sessions.ActivityAdminSession(objective_bank_id, runtime=self._runtime)<EOL>
Gets the ``OsidSession`` associated with the activity admin service for the given objective bank.

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