export declare const ERROR_HAS_NO_STACK_MSG = "ERROR_HAS_NO_STACK";
export declare const NoibuJS: {
    /** @deprecated Help codes are not supported by the v2 pipeline; always resolves null. */
    requestHelpCode(): Promise<string | null>;
    /** v0.x signature (async). Same validation result strings. */
    addCustomAttribute(name: string, value: string): Promise<string>;
    /** v0.x signature: requires an error-like object with message AND stack. */
    addError(customError: unknown): string;
    /** v0.x signature used by JS-framework wrappers; the source tag is carried by the stack now. */
    addJsSdkError(customError: unknown, _errorSource: unknown): string;
};