    # 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",
                  "displayDescription" => "",
                  "availabilityZone" => "nova",
                  "displayName" => "test 1",
                  "attachments" => [{}],
                  "volumeType" => nil,
                  "snapshotId" => nil,
                  "size" => 1,
                  "id" => 6,
                  "createdAt" => "2012-03-30 05:31:00.655058",
                  "metadata" => {} },
                { "status" => "available",
                  "displayDescription" => "",
                  "availabilityZone" => "nova",
                  "displayName" => "test 2",
                  "attachments" => [{}],
                  "volumeType" => nil,
                  "snapshotId" => nil,
                  "size" => 1,
                  "id" => 8,
                  "createdAt" => "2012-03-30 16:14:55.582717",
                  "metadata" => {} }
                ]
              response.body = { 'volumes' => self.data[:volumes] }
              response
            end