taskYIELD in idle task

Hi, Can you please tell me what is the meaning of taskYIELD() in idle task ?

taskYIELD in idle task

Are you talking about this? https://www.freertos.org/a00110.html#configIDLESHOULDYIELD There is more in the book too: https://www.freertos.org/Documentation/RTOS_book.html