Help with armhole shaping and maintaining cable pattern

Hi, I’m new to knitting and working with cables. I am working on a baby cardigan which is a 2 x 2 cable. I am ok with the pattern until I get to the arm shaping. The pattern has no guidance in how to decrease for the arm shaping whilst maintaining the cable pattern. When the decrease affects the cable do I just knit/purl or do I decrease the 2 x 2 cable to a 2 x 1 cable?
I have watched a couple of YouTube videos but am still unsure what to do?

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Welcome to KH!

Sometimes you have to give up the cable or work with fewer stitches to the back part of the cable in order to maintain pattern. Patty Lyons explains for cables and shows photos about 1/3 of the way down the page.