lib/redis-model-extension/attributes.rb
def to_arg
      redis_fields_config.inject({}) do |args, (key, type)|
        args[key] = self.send(key)
        args
      end
    end
def to_arg
      redis_fields_config.inject({}) do |args, (key, type)|
        args[key] = self.send(key)
        args
      end
    end
take all arguments and send them out