Method onChildChanged

packages/firebase-database/index.android.ts:229–233

(param0: com.google.firebase.database.DataSnapshot, param1: string)

						}
					},
					onChildChanged(param0: com.google.firebase.database.DataSnapshot, param1: string) {
						if (eventType === 'child_changed') {
							callback?.(DataSnapshot.fromNative(param0), param1);
						}
					},
					onChildRemoved(param0: com.google.firebase.database.DataSnapshot) {
						if (eventType === 'child_removed') {
							callback?.(DataSnapshot.fromNative(param0), null);