{
  "$defs": {
    "AliasObjectA": {
      "additionalProperties": false,
      "properties": {
        "prop_a": {
          "type": "string"
        }
      },
      "required": [
        "prop_a"
      ],
      "type": "object"
    }
  },
  "$id": "https://github.com/invopop/jsonschema/alias-object-b",
  "$ref": "#/$defs/AliasObjectA",
  "$schema": "https://json-schema.org/draft/2020-12/schema"
}