call method

T call(
  1. double p1, [
  2. double? p2,
  3. double? p3,
  4. double? p4,
])

Implementation

T call(double p1, [double? p2, double? p3, double? p4]) {
  return only(
    top: p1,
    bottom: p3 ?? p1,
    start: p4 ?? p2 ?? p1,
    end: p2 ?? p1,
  );
}