TopicSummary

topic_keyTopic Key (string)required

Unique slug for the topic, e.g. 'demographics'

labelLabel (string)required

Human-readable topic name

depthDepth (integer)required

Nesting depth (0 = root)

TopicSummary

{
  "topic_key": "string",
  "label": "string",
  "depth": 0
}