local p = {}
function p.exists(frame)
local sPage = frame.args[1]
if sPage then
local _, val = pcall(package.loaders[2], sPage)
if type(val) == "function" or type(val) == "string" then
return frame.args[2] or frame.args["true"]
end
end
return frame.args[3] or frame.args["false"]
end
return p