discourse-custom-wizard/spec/fixtures/step/required_data.json

{
  "required_data_message": "Missing required data",
  "required_data": [
    {
      "type": "validation",
      "pairs": [
        {
          "index": 0,
          "key": "step_1_field_1",
          "key_type": "text",
          "value": "required",
          "value_type": "text",
          "connector": "equal"
        }
      ]
    }
  ]
}