AsyncTask2<T, D> constructor Null safety

AsyncTask2<T, D>(
  1. {required Future func(
    1. T,
    2. D
    ),
  2. required T arg,
  3. required D arg2,
  4. dynamic onCancel(
      )?}
    )

    Implementation

    AsyncTask2({
  required this.func,
  required this.arg,
  required this.arg2,
  this.onCancel,
});