module GraphQL::Schema::FindInheritedValue

def self.extended(child_cls)
  child_cls.singleton_class.include(GraphQL::EmptyObjects)
end

def self.included(child_cls)
  child_cls.include(GraphQL::EmptyObjects)
end

def find_inherited_value(method_name, default_value = nil)
  if self.is_a?(Class)
    superclass.respond_to?(method_name, true) ? superclass.send(method_name) : default_value
  else
    ancestors_except_self = ancestors
    ancestors_except_self.delete(self)
    ancestors_except_self.each do |ancestor|
      if ancestor.respond_to?(method_name, true)
        return ancestor.send(method_name)
      end
    end
    default_value
  end
end