1. Dart
2. dart:html
3. PushSubscriptionOptions
4. applicationServerKey property

##### PushSubscriptionOptions class

1. Properties
2. applicationServerKey
3. hashCode
4. runtimeType
5. userVisibleOnly
6. Methods
7. noSuchMethod
8. toString
9. Operators
10. operator ==

description

# applicationServerKey property Null safety

ByteBuffer? applicationServerKey

## Implementation

    ByteBuffer? get applicationServerKey native;