Figured this problem out myself, nobody gave an answer so I can't deem this question as Answered.
I'm trying to make a pseudo camera and I need the I and O keys for those who can't remotely scroll with their mouse.
game:GetService("UserInputService").InputBegan:connect(function(input,gproc)
if input.KeyCode==Enum.KeyCode.O then
elseif input.KeyCode==Enum.KeyCode.I then
end
end)

4 comments
This looks right.
Nothing wrong with your code. Make sure it's in a localscript in somewhere that replicates to the client.
It's in a LocalScript parented to StarterPlayerScripts
Try adding print functions at lines 3 and 5 to see if the function works when you press "I" or "O"