Function write_message 

pub async fn write_message<Writer: AsyncWriteExt + Unpin, Message: Serialize>(
    partial_write: &mut BytesMut,
    writer: &mut Writer,
    message: Message,
) -> Result<(), ProtocolError>

Write single F message with frame’s headers to the writer. As with the function write_messages, *partial_write is set for graceful shutdown attempts with partial writes. Upon a successful write, it is left empty.