subscribeToChildren method Null safety

ValueStream<Map<String, dynamic>> subscribeToChildren(
  1. String parentMediaId

Get a value stream that emits service-specific options to send to the client whenever the children under the specified parent change. The emitted options may contain information about what changed. A client that is subscribed to this stream should call getChildren to obtain the changed children.


ValueStream<Map<String, dynamic>> subscribeToChildren(String parentMediaId);