@abc.abstractmethod<EOL><INDENT>def unassign_qualifier_from_vault(self, qualifier_id, vault_id):<DEDENT>
pass<EOL>
Removes a ``Qualifier`` from a ``Vault``.

        :param qualifier_id: the ``Id`` of the ``Qualifier``
        :type qualifier_id: ``osid.id.Id``
        :param vault_id: the ``Id`` of the ``Vault``
        :type vault_id: ``osid.id.Id``
        :raise: ``NotFound`` -- ``qualifier_id`` or ``vault_id`` not found or ``qualifier_id`` not assigned to ``vault_id``
        :raise: ``NullArgument`` -- ``qualifier_id`` or ``vault_id`` is ``null``
        :raise: ``OperationFailed`` -- unable to complete request
        :raise: ``PermissionDenied`` -- authorization failure

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