return LlmException.ERROR_UNKNOWN;
    }

    // --- Utility methods ---

    /**
     * Checks if the LLM response has empty/blank content with a "length" finish reason.
     * This typically indicates that a reasoning model consumed all tokens for internal
     * reasoning, leaving no tokens for actual output content.
     *
     * @param response the LLM chat response

 *
 * Username and password are either present, or the empty string `""` if absent. This class offers
 * no mechanism to differentiate empty from absent. Neither of these components are popular in
 * practice. Typically HTTP applications use other mechanisms for user identification and
 * authentication.
 *
 * ### Host
 *
 * The host identifies the webserver that serves the URL's resource. It is either a hostname like

# Domain attribute for the search parameter cookie. Set to the domain scope you want the cookie to be available on (e.g., example.com).
cookie.search.parameter.domain=
# Path attribute for the search parameter cookie. Typically set to "/" or the context path of the app.
cookie.search.parameter.path=/
# SameSite attribute for the search parameter cookie. Valid values: Lax, Strict, None
cookie.search.parameter.same_site=Lax

			versions[i].SuccessorModTime = versions[i-1].ModTime
		}
	}
	if len(versions) > 0 {
		versions[0].IsLatest = true
	}
	return versions, nil
}

// mergeXLV2Versions will merge all versions, typically from different disks
// that have at least quorum entries in all metas.
// Each version slice should be sorted.
// Quorum must be the minimum number of matching metadata files.

   * backing sets do. Contains methods to copy the data into a new set which will then remain
   * stable. There is usually no reason to retain a reference of type {@code SetView}; typically,
   * you either use it as a plain {@link Set}, or immediately invoke {@link #immutableCopy} or
   * {@link #copyInto} and forget the {@code SetView} itself.
   *
   * @since 2.0
   */