Multipart_form.FieldSourceAn HTTP header (see Header.t) is composed of several fields. A field is a Field_name.t with a (typed or not) value. This library provides 4 kinds of values:
Content_type.t value which is given by the Field_name.content_type field-name. It specifies the type of contents.Content_encoding.t value which is given by the Field_name.content_transfer_encoding field-name. It specifies the encoding used to transfer contents.Content_disposition.t value which is given by the Field_name.content_disposition field-name. It specifies some meta information about contents.type 'a t = | Content_type : Content_type.t t| Content_encoding : Content_encoding.t t| Content_disposition : Content_disposition.t t| Field : Unstrctrd.t t