Function localized_payload_with_buffer
pub fn localized_payload_with_buffer<E>(
    round: u64,
    set_id: u64,
    message: &E,
    buf: &mut Vec<u8>,
)where
    E: Encode,Expand description
Encode round message localized to a given round and set id using the given buffer. The given buffer will be cleared and the resulting encoded payload will always be written to the start of the buffer.