Prepare the SOAP Envelope for sending.

        Args:
            prepared_soap_header (str): A SOAP Header prepared by
                `prepare_soap_header`
            prepared_soap_body (str): A SOAP Body prepared by
                `prepare_soap_body`

        Returns:
            str: A prepared SOAP Envelope

def prepare_soap_envelope(self, prepared_soap_header, prepared_soap_body):
        """Prepare the SOAP Envelope for sending.

        Args:
            prepared_soap_header (str): A SOAP Header prepared by
                `prepare_soap_header`
            prepared_soap_body (str): A SOAP Body prepared by
                `prepare_soap_body`

        Returns:
            str: A prepared SOAP Envelope
        """

        # pylint: disable=bad-continuation
        soap_env_template = (
            '<?xml version="1.0"?>'
            '<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/"'
            ' s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">'
                '{soap_header}'
                    '<s:Body>'
                        '{soap_body}'
                    '</s:Body>'
            '</s:Envelope>')  # noqa PEP8
        return soap_env_template.format(
            soap_header=prepared_soap_header,
            soap_body=prepared_soap_body)