def respond_to?(method, include_private = false)
    load_data if @last_updated.nil?
    super || @data.respond_to?(method, include_private)
end

def method_missing(sym, *args, &block)
  load_data if @last_updated.nil?
  return super unless @data.respond_to? sym
  instance_eval "def #{sym}(*args, &block) @data.#{sym}(*args, &block) end"
  send(sym, *args, &block)
end