@abc.abstractmethod<EOL><INDENT>def get_configuration_form_for_update(self, configuration_id):<DEDENT>
return<EOL>
Gets the configuration form for updating existing configurations.

        A new configuration form should be requested for each update
        transaction.

        :param configuration_id: ``Id`` of a ``Configuration``
        :type configuration_id: ``osid.id.Id``
        :return: the configuration form
        :rtype: ``osid.configuration.ConfigurationForm``
        :raise: ``NotFound`` -- ``configuration_id`` is not found
        :raise: ``NullArgument`` -- ``configuration_id`` is ``null``
        :raise: ``OperationFailed`` -- unable to complete request
        :raise: ``PermissionDenied`` -- authorization failure

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