Mere = {Val1 = 10}
function Mere.hello (text)
  print("This is ",text)
end

function Mere.increment(self,byV)
  self.Val1 = self.Val1 + byV
end

function Mere:new (o)
  o = o or {}
  setmetatable(o, self)
  self.__index = self
  return o
end

m1 = Mere:new{Val1 = 100}
--print(m1.Val1)
m1:increment(10)
--print(m1.Val1)
--print(Mere.Val1)

Fille = Mere:new() --activate inheritence
function Fille.HelloFille(self)
  print("fille",self.Val1)
end

f = Fille:new() --create instance of subclass
f:HelloFille() --: call pass object (self) as first param
f:increment(89)
print(f.Val1)

print(Mere.hello("Cool"))