Invoke the RFC 2388 spec compliant normalizer

        :param parts:
            the already vetted & parsed FieldStorage objects
        :return:
            normalized dict

def normalize(self, parts):
        """ Invoke the RFC 2388 spec compliant normalizer

        :param parts:
            the already vetted & parsed FieldStorage objects
        :return:
            normalized dict
        """

        part = parts.list[0]

        return {
            'content': part.file.read(),
            'content-type': part.type,
            'file-ext': extensions.get(part.type),
            'file-name': part.filename,
        }