activities

{
  "@renku_data_type": "renku.core.metadata.database.RenkuOOBTree",
  "@renku_data_value": {
    "@renku_data_type": "builtins.tuple",
    "@renku_data_value": [
      {
        "@renku_data_type": "builtins.tuple",
        "@renku_data_value": [
          {
            "@renku_data_type": "builtins.tuple",
            "@renku_data_value": [
              {
                "@renku_data_type": "builtins.tuple",
                "@renku_data_value": [
                  "/activities/148fc15412a7430e9268849c8bb1df84",
                  {
                    "@renku_data_type": "renku.core.models.provenance.activity.Activity",
                    "@renku_oid": "c600ed19c2803e9e8d39f071731f6a46ea32305ebbe903171d6540982f253709",
                    "@renku_reference": true
                  },
                  "/activities/83dbed2912bd440e97681720ac2b588e",
                  {
                    "@renku_data_type": "renku.core.models.provenance.activity.Activity",
                    "@renku_oid": "bbefbaecc64492ab3025c3240fa8c5973cda2d77e0f7215bdecd822d50b297cb",
                    "@renku_reference": true
                  }
                ]
              }
            ]
          }
        ]
      }
    ]
  },
  "@renku_oid": "activities"
}