def send_fax(self, payload_outbox, **kwargs):  # noqa: E501
        """Send a fax  # noqa: E501

        With this API call you will be able to send a fax (one or more files) to one or more destinations. If you are a corporate member and you don't have a fax number set your **from** parameter to **NO_NUMBER**  # noqa: E501
        This method makes a synchronous HTTP request by default. To make an
        asynchronous HTTP request, please pass async=True
        >>> thread = api.send_fax(payload_outbox, async=True)
        >>> result = thread.get()

        :param async bool
        :param PayloadOutbox payload_outbox: (required)
        :return: None
                 If the method is called asynchronously,
                 returns the request thread.
        """
        kwargs['_return_http_data_only'] = True
        if kwargs.get('async'):
            return self.send_fax_with_http_info(payload_outbox, **kwargs)  # noqa: E501
        else:
            (data) = self.send_fax_with_http_info(payload_outbox, **kwargs)  # noqa: E501
            return data
Send a fax  # noqa: E501

        With this API call you will be able to send a fax (one or more files) to one or more destinations. If you are a corporate member and you don't have a fax number set your **from** parameter to **NO_NUMBER**  # noqa: E501
        This method makes a synchronous HTTP request by default. To make an
        asynchronous HTTP request, please pass async=True
        >>> thread = api.send_fax(payload_outbox, async=True)
        >>> result = thread.get()

        :param async bool
        :param PayloadOutbox payload_outbox: (required)
        :return: None
                 If the method is called asynchronously,
                 returns the request thread.