The following protocols are available globally.
The CLSCrashReport protocol is deprecated. See the CLSReport class and the CrashyticsDelegate changes for details.
The CrashlyticsDelegate protocol provides a mechanism for your application to take action on events that occur in the Crashlytics crash reporting system. You can make use of these calls by assigning an object to the Crashlytics’ delegate property directly, or through the convenience +startWithAPIKey:delegate: method.