-- Class declaration in Lua.

Foo = {}

-- constructor
function Foo.new()
    return setmetatable({

        -- attributes
        xyzzy = 42

    }, {__index = Foo})
end

-- methods
function Foo:bar()
    -- self is this instance
    print(self.xyzzy)
end

-- static methods
function Foo.qux()
    print("Lua is awesome.")
end