Pixelmon Mod

I've looked everywhere and I can't find this. (Sorry I must be blind)
I already know how to get Pixelmon working BUT

how do I play Pokemon GO ? I can't find the mod for that also will it have the towns already built? or do I have to do something else , will it have GYMS? thanks need all the help I can get

there is no pokemon go mod...

There is no PKMON Go mod, not for Pixelmon. What you probably saw in a youtuber video is a privated mod, which is not an official sidemod.