initialize method

@override FutureOr<InitializationResult> initialize()

Initialization implementation. Do not call it directly, use doInitialization.

It can be a synchronous (returning a bool) or an asynchronous implementation (returning a Future<bool>).

See initializeDependencies.

Implementation

@override
FutureOr<InitializationResult> initialize() {
  ensureConfigured();
  return InitializationResult.ok(this);
}