{
  "schema": "kaldenframe.column-schema.v1",
  "dataset_id": "service_routing_training_v1",
  "data_values_present": false,
  "columns": [
    {"name": "case_id", "type": "string", "role": "identity"},
    {"name": "opened_time", "type": "string", "role": "time"},
    {"name": "messages_before_review", "type": "integer", "role": "candidate"},
    {"name": "resolution_after_review", "type": "number", "role": "candidate"},
    {"name": "agent_free_text", "type": "string", "role": "candidate"},
    {"name": "priority_label", "type": "category", "role": "target"}
  ]
}