Rust (ssh-rs):

fn main() {
    let mut session = ssh::create_session()
    .username("user")
    .password("pass")
    .connect("server:22")
    .unwrap()
    .run_backend();

    let mut exec = session.open_exec().unwrap();
    exec.send_command("date +\"%T.%N\"").unwrap();
    let vec: Vec<u8> = exec.get_result().unwrap();
    print!("{}", String::from_utf8(vec).unwrap());

    let mut exec = session.open_exec().unwrap();
    exec.send_command("date +\"%T.%N\"").unwrap();
    let vec: Vec<u8> = exec.get_result().unwrap();
    print!("{}", String::from_utf8(vec).unwrap());

    session.close();
}