def assit_kind_of(klass, object, message = "Object of wrong type")
      if(!object.kind_of?(klass))
        message << " (Expected #{klass} but was #{object.class})"
        assit(false, message)
      end
    end
def assit_kind_of(klass, object, message = "Object of wrong type")
      if(!object.kind_of?(klass))
        message << " (Expected #{klass} but was #{object.class})"
        assit(false, message)
      end
    end
Assert if something is of the right type