export declare function convertDateToUnix(created_at: string | number): number;
export declare function filterCustomTraits(traits: {
    [k: string]: unknown;
} | undefined): {
    [k: string]: unknown;
};
export declare function getWidgetOptions(hide_default_launcher: boolean | undefined, activator: string | undefined): {
    [key: string]: unknown;
};
export declare function isEmpty(o: object | undefined): boolean;
