Raytac MDBT50Q Programming for AT-Commands

I am a beginner and I just got a Raytac "MDBT50Q" bluetooth 5 module based of nRF52840 Soc.MDBT50Q does not come with a builtin frimware to respond to AT-commands.Can somebody please, tell me how can I programm this module for AT commands.Thank you very much...

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