How we can create composite CDC USB Device ? to use Virtual Com and UASRT1 and UASRT2 together ?

I need create composite device for the Virtual com and USART1 also USART2.

That meaning when we connect the stm32 to PC show 3 COM ports,

it's Possible to do that with STM32F042x6?

i need help to create the composite device? or see a good example to do that.

Thanks

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