1. override
String toString()

Returns a string representation of this object.

Source 

@override
String toString() {
  if (reverseCurve == null)
    return '$parent\u27A9$curve';
  if (_useForwardCurve)
    return '$parent\u27A9$curve\u2092\u2099/$reverseCurve';
  return '$parent\u27A9$curve/$reverseCurve\u2092\u2099';
}