content: {
    "$id": "search_query.json",
    "$schema": "https://json-schema.org/draft/2019-09/schema",
    "additionalProperties": false,
    "properties": {
      "card_type": {
        "enum": [
          "CARD",
          "CARDBACK",
          "TOKEN"
        ]
      },
      "query": {
        "type": [
          "string",
          "null"
        ]
      }
    },
    "required": [
      "query",
      "card_type"
    ],
    "title": "Search Query",
    "type": "object"
  }