Model for
content as defined by
https://tools.ietf.org/html/rfc7233#section-5.4.1 and https://tools.ietf.org/html/rfc7233#appendix-A
multipart/byteranges
Model for multipart/form-data
content as defined in http://tools.ietf.org/html/rfc2388.
Model for multipart/form-data
content as defined in http://tools.ietf.org/html/rfc2388.
All parts must have distinct names. (This is not verified!)
Basic model for multipart content as defined by http://tools.ietf.org/html/rfc2046.