Check if 'extra' and 'message_sent' in rich push message is null.
Check if 'extra' and 'message_sent' in rich push message is null.

mikerowan/ios-library,zhangqinghe/ios-library,zhangqinghe/ios-library,mikerowan/ios-library,mikerowan/ios-library,ipmobiletech/ios-library,grosch/ios-library,manuyavuz/ios-library,manuyavuz/ios-library,ipmobiletech/ios-library,zhangqinghe/ios-library,grosch/ios-library,grosch/ios-library,manuyavuz/ios-library,ipmobiletech/ios-library