-- modules
-- a package is a collection of modules

local test = {}

function test.add(n1, n2) -- dont put local as the scope of this function
since you already added
-- a local to the 'test' table... doing so will return an error
return n1 + n2
end

function test.hi(name)
return "my name is " .. name
end

return test

print("===========================")

 local dad = require("kek13")

 print(dad.hi("A"))

 print(dad.add(1, 5))

 print("==============================")

 require ("kek13")

 print(dad.hi("ur mum"))
 print(dad.add(2, 2))

 print("========================================")