augmentedStructure.golo

augmentedStruct human = {
  
  fields = {
    firstName, 
    lastName
  }

  methods = {
    function hello = |this| {
      println("hello")
    }
    function ctor = |this, first, last| {
      this: firstName(first)
      this: lastName(last)
      return this
    }
  }
  
}

Use case for macros :-)