learning/tour-of-beam/backend/samples/api/get_content_tree.json

{
  "modules" : [
     {
        "complexity" : "BASIC",
        "id" : "module1",
        "title" : "Module One",
        "nodes" : [
           {
              "type" : "unit",
              "unit" : {
                 "title" : "Example Unit Name",
                 "id" : "intro-unit"
              }
           },
           {
              "group" : {
                 "id": "group1",
                 "title" : "The Group",
                 "nodes" : [
                    {
                       "type" : "unit",
                       "unit" : {
                          "title" : "Example Unit Name",
                          "id" : "example1"
                       }
                    },
                    {
                       "type" : "unit",
                       "unit" : {
                          "title" : "Challenge Name",
                          "id" : "challenge1"
                       }
                    }
                 ]
              },
              "type" : "group"
           }
        ]
     }
  ],
  "sdkId" : "python"
}