build method

Implementation

@override
Set<DateTime> build(String apiKey) {
  return ref.watch(hiveDateTimeBox(name)).when(
      data: (data) {
        init = true;
        return <DateTime>{...data.values, ...preInit};
      },
      error: (o, s) {
        return <DateTime>{};
      },
      loading: () => <DateTime>{});
}