fn (a: int) == (b: int) -> int;
fn (a: int) - (b: int) -> int;
fn (a: int) * (b: int) -> int;

fn write(data: String);

struct Point<NumT> {
  x: NumT,
  y: NumT,
}

trait Print {
  fn print(self);
}

impl Print for Point {
  fn print(self) {
    write("A point!");
  }
}

let p1 = Point { x: 1, y: 2 }

p1.printer();