code: public static void register(Application application, ApptentiveConfiguration configuration) {
  		if (application == null) {
  			throw new IllegalArgumentException("Application is null");
  		}
  
  		if (configuration == null) {
  			throw new IllegalArgumentException("Apptentive configuration is null");
  		}
  
  		try {
  			ApptentiveInternal.createInstance(application, configuration);
  		} catch (Exception e) {
  			ApptentiveLog.e(e, "Exception while registering Apptentive SDK");
  			logException(e);
  		}
  	}
docs: Must be called from the {@link Application#onCreate()} method in the {@link Application} object defined in your app's manifest.
  @param application Application object.
  @param configuration Apptentive configuration containing SDK initialization data.