handleNotification abstract method
How to handle notifications received by the internal notificationSubscription
.
Possible operations are: 'update', 'append', 'remove', 'delete', 'init', null
These operations are the same as AtNotification, with an additional 'init'
operation
which is used by getKeys() to indicate that this key was preloaded.
Implementation
@protected
/// How to handle notifications received by the internal [notificationSubscription].
///
/// Possible operations are:
/// 'update', 'append', 'remove', 'delete', 'init', null
///
/// These operations are the same as [AtNotification], with an additional ['init'] operation
/// which is used by [getKeys()] to indicate that this key was preloaded.
void handleNotification(AtKey key, AtValue value, String? operation);