switchModule?

Hi,
I tried start learning about the metawear board in android stuidio, but I'm sadly stuck on this early step. Sorry if my question is stupid for all you skilled ones. I try to follow this guide https://youtube.com/watch?v=Mbhov43b7z0&feature=youtu.be&t=1m34s and I am stuck on the step where I should write the code "switchModule" it does not appear in the list and don't turn purple like in the video. What should I do?

Thanks

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