-- the extension module: pub free fns whose first parameter names the
-- receiver type become methods via `using textutil`
pub fn shout(s: Text) -> Text {
  return "${s}!";
}

pub fn reps(s: Text, n: Int) -> Text {
  let out = "";
  let i = 0;
  while i < n {
    out = "${out}${s}";
    i = i + 1;
  }
  return out;
}

-- not pub: never a candidate
fn hidden(s: Text) -> Text {
  return s;
}