PosComputeCall<V> typedef
PosComputeCall<V> =
FutureOr<V> Function(V? value, Object? error, StackTrace? stackTrace)
Callback invoked after a computation completes.
value is non-null on success.
error and stackTrace are non-null on failure.
Implementation
typedef PosComputeCall<V> = FutureOr<V> Function(
V? value, Object? error, StackTrace? stackTrace);