Function sp_dto::rpc_dto_with_later_attachments2

pub fn rpc_dto_with_later_attachments2(
    tx: String, 
    rx: String, 
    key: String, 
    payload: Vec<u8>, 
    attachments: Vec<(String, u64)>, 
    route: Route, 
    auth_token: Option<String>, 
    auth_data: Option<Value>
) -> Result<Vec<u8>, Error>