use crate;
/// ### MIME-Version
/// Related: Content handling
///
/// HTTP messages may include a single MIME-Version general-header field to
/// indicate what version of the MIME protocol was used to construct the
/// message. Use of the MIME-Version header field, as defined by RFC 1521 [5],
/// should indicate that the message is MIME-conformant. Unfortunately, some
/// older HTTP/1.0 servers send it indiscriminately, and thus this field should
/// be ignored.
///
/// Reference: https://www.rfc-editor.org/rfc/rfc1945.html#appendix-D.2.7
///