In this example, the code between the beginProfile and endProfile methods will be profiled and the results will be stored in memory. The profile name is 'myMethod', which can be any name that you choose. The beginProfile method belongs to the Yii base package library. It can be found in the CProfileLogRoute class, which is used for logging profiled data. The beginProfile method is used in combination with other profiling methods, such as endProfile and log, to create a complete profiling system for Yii applications.