delete method
Delete the item with the given id
from the API.
Implementers should ensure this method updates the cache.
Implementation
@override
Future<void> delete(Snowflake id) async {
final route = HttpRoute()..guilds(id: id.toString());
final request = BasicRequest(route, method: 'DELETE');
await client.httpHandler.executeSafe(request);
cache.remove(id);
}