    # File lib/fog/aws/requests/cloud_watch/list_metrics.rb, line 38
            def list_metrics(options={})
              body = case options["NextToken"]
                     when nil
                       { "ListMetricsResult" => {
                          "Metrics" => (0...500).map{ {} },
                          "NextToken" => '1'
                       }}
                     when "1"
                       { "ListMetricsResult" => {
                          "Metrics" => (0...500).map{ {} },
                          "NextToken" => '2'
                       }}
                     when "2"
                       { "ListMetricsResult" => {
                          "Metrics" => (0...1).map{ {} }
                       }}
                     end

              Excon::Response.new.tap do |response|
                response.body = body
                response.status = 200
              end
            end