{
  "$defs": {
    "Shared": {
      "properties": {
        "a": {
          "type": "number"
        },
        "b": {
          "type": "string"
        }
      },
      "required": [
        "a",
        "b"
      ],
      "type": "object"
    }
  },
  "properties": {
    "one": {
      "$ref": "#/$defs/Shared"
    },
    "two": {
      "$ref": "#/$defs/Shared"
    }
  },
  "required": [
    "one",
    "two"
  ],
  "type": "object"
}