SENTAsyncInitializationCompletionHandler

This closure is used with initializeAsync(withOptions:launchOptions:completionHandler:).

SENTAsyncInitializationCompletionHandler API

typealias SENTAsyncInitializationCompletionHandler = 
    (SENTAsyncInitializationResult?, SENTAsyncInitializationError?) -> Void

See SENTAsyncInitializationResult and SENTAsyncInitializationError.