class Rack::QueryParser

def self.make_default(_key_space_limit=(not_deprecated = true; nil), param_depth_limit, **options)
  unless not_deprecated
    warn("`first argument `key_space limit` is deprecated and no longer has an effect. Please call with only one argument, which will be required in a future version of Rack", uplevel: 1)
  end
  new Params, param_depth_limit, **options
end