    # File lib/fog/openstack/requests/volume/list_volumes.rb, line 20
            def list_volumes(detailed=true)
              response = Excon::Response.new
              response.status = 200
              self.data[:volumes] ||= [
                { "status" => "available",
                  "display_description" => "test 1 desc",
                  "availability_zone" => "nova",
                  "display_name" => "Volume1",
                  "attachments" => [{}],
                  "volume_type" => nil,
                  "snapshot_id" => nil,
                  "size" => 1,
                  "id" => 1,
                  "created_at" => Time.now,
                  "metadata" => {} },
                { "status" => "available",
                  "display_description" => "test 2 desc",
                  "availability_zone" => "nova",
                  "display_name" => "Volume2",
                  "attachments" => [{}],
                  "volume_type" => nil,
                  "snapshot_id" => nil,
                  "size" => 1,
                  "id" => 2,
                  "created_at" => Time.now,
                  "metadata" => {} }
                ]
              response.body = { 'volumes' => self.data[:volumes] }
              response
            end