Converts this content into its strict counterpart.
(formData: StringAdd).self
(formData: StringFormat).self
(formData: ArrowAssoc[FormData]).x
(Since version 2.10.0) Use leftOfArrow
instead
(formData: Ensuring[FormData]).x
(Since version 2.10.0) Use resultOfEnsuring
instead
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!)