Create own provider

Hi, colleagues.

I started work with modx recently. My experience in the PHP and a web-development about three years. But I encountered with the problem in MODx. I need create own provider for my addons and I don’t know how make this. I studied this forum and I asked Google, but I didn’t find the information by this question. Help me, please, if you can.

Best regards, Ivan Klimchuk.