{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "type": "object",
  "required": [
    "parentObj"
  ],
  "properties": {
    "parentObj": {
      "type": "array",
      "items": {
        "anyOf": [
          {
            "$ref": "#/definitions/type1"
          },
          {
            "$ref": "#/definitions/type2"
          }
        ]
      }
    }
  },
  "definitions": {
    "type1": {
      "type": "object",
      "properties": {
        "dog": {
          "type": "string"
        }
      },
      "required": [
        "dog"
      ]
    },
    "type2": {
      "type": "object",
      "properties": {
        "cat": {
          "type": "string"
        }
      },
      "required": [
        "cat"
      ]
    }
  }
}