convert method Null safety

  1. @override
GpsStay convert(
  1. GpsPoint input

The convert method cannot be called, because input may generate any number of GpsStay entities, which can therefore not be returned as one single result.


GpsStay convert(GpsPoint input) {
  // This method doesn't really make sense, because the input may end up
  // generating more than one GpsStay.
  throw UnimplementedError();