* **only** `example.com`. If this flag is false it matches `example.com` and all subdomains
   * including `api.example.com`, `www.example.com`, and `beta.api.example.com`.
   *
   * This is true unless 'domain' is present.
   */
  @get:JvmName("hostOnly") val hostOnly: Boolean,
  /**
   * Returns a string describing whether this cookie is sent for cross-site calls.
   *