onContextWillBeDestroyed property Null safety

Stream<GraphObjectId> onContextWillBeDestroyed

Notifies that an existing BaseAudioContext will be destroyed.

Implementation

Stream<GraphObjectId> get onContextWillBeDestroyed => _client.onEvent
    .where((event) => event.name == 'WebAudio.contextWillBeDestroyed')
    .map((event) =>
        GraphObjectId.fromJson(event.parameters['contextId'] as String));