def arguments(args=(not_set = true), options={}, &block)
      if not_set
        @arguments
      else
        @arguments = Arguments.new(self, options).parse(*args, &block)
      end
    end
def arguments(args=(not_set = true), options={}, &block)
      if not_set
        @arguments
      else
        @arguments = Arguments.new(self, options).parse(*args, &block)
      end
    end
Acts as setter and getter for api requests arguments parsing.

 Returns Arguments instance.