@abc.abstractmethod<EOL><INDENT>def translate_strings(self, strings, default_strings):<DEDENT>
return<EOL>
Translates the given strings into the target language.

        :param strings: the ``string`` to translate
        :type strings: ``string[]``
        :param default_strings: the default ``string`` if no translation available.
        :type default_strings: ``string[]``
        :return: the translated ``strings`` or the given default value if no translation available.
        :rtype: ``string``
        :raise: ``NullArgument`` -- ``null`` argument provided
        :raise: ``OperationFailed`` -- unable to complete request
        :raise: ``PermissionDenied`` -- authorization failure

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