def define_methods_into(client)
      links.each do |link|
        @client.define_singleton_method(link.method_signature) do |params = {}, headers = {}|
          Request.call(client: client, headers: headers, link: link, params: params)
        end
      end
    end
def define_methods_into(client)
      links.each do |link|
        @client.define_singleton_method(link.method_signature) do |params = {}, headers = {}|
          Request.call(client: client, headers: headers, link: link, params: params)
        end
      end
    end
Defines methods into client
 @example
   client.list_app
   client.info_app(id: 1)