Function ssb_json_msg::json::to_legacy

pub fn to_legacy<W, T>(
    msg: &Message<T>, 
    w: &mut W, 
    compact: bool
) -> Result<(), EncodeJsonError> where
    W: Write,
    T: Serialize, 

Serialize a Message into a writer, using the legacy encoding.

If compact, this omits all whitespace. Else, this produces the signing encoding.