Why is this module declaring that the client is still the server?

When I use this function the module just ignored the client as it was never existant

if game:GetService("RunService"):IsServer() then
    return true
else
    return false
end

This makes no sense. Maybe try and give more context. What do you mean it ignored client? What ignored the client? Is the module being required client or server?

I don’t know but now I have solution for it to be done tomorrow and that is GetClient and GetServer

When requiring modules they have two states. When required server its a server module when required client it is a client module. So just make sure you know what kind of module it is in terms of server or client and put a solution so people dont waist their time answering like i did if you already figure it out.