def handle(self,
               t_input: inference.TranslatorInput,
               t_output: inference.TranslatorOutput,
               t_walltime: float = 0.):
        """
        :param t_input: Translator input.
        :param t_output: Translator output.
        :param t_walltime: Total walltime for translation.
        """
        self.stream.write("{:.3f}\t{}\t{}\n".format(t_output.score,
                                                    C.TOKEN_SEPARATOR.join(t_input.tokens),
                                                    t_output.translation))
        self.stream.flush()
:param t_input: Translator input.
        :param t_output: Translator output.
        :param t_walltime: Total walltime for translation.