export type CustomDataDict = Record<string, unknown>;
export declare function addCustomDataValue(name: string, value: unknown): void;
export declare function getAllCustomData(): CustomDataDict;
export declare function getUpdatedCustomData(): CustomDataDict;
export declare function clearUpdateCustomData(): void;
/**
 * Convert a set of custom data values to the string format expected by the backend.
 */
export declare function valuesToString(values: CustomDataDict): string;