What role does the `Braze.startWithApiKey(_:appGroupId:)` method serve in the SDK?

The Braze.startWithApiKey(_:appGroupId:) method is crucial for initializing the Braze SDK within an application. When this method is called, it sets up the necessary configurations and establishes the connection between the app and Braze's backend services. This initialization is foundational because it allows the app to track user interactions, send push notifications, and manage in-app messaging, among other functions.

Successful execution of this initialization process ensures that the SDK is ready to collect data and utilize Braze’s features throughout the app's lifecycle. Without this method being called, the SDK would not function correctly, and features like user event tracking and in-app messaging would not be operational. Therefore, this method plays a pivotal role in setting the groundwork for the usage of Braze's capabilities within the application.