@abc.abstractmethod<EOL><INDENT>def remove_translation(self, source_text):<DEDENT>
pass<EOL>
Removes a translation.

        :param source_text: the source ``string``
        :type source_text: ``string``
        :raise: ``NullArgument`` -- ``source_text`` is ``null``
        :raise: ``OperationFailed`` -- unable to complete request
        :raise: ``PermissionDenied`` -- authorization failure

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