import { type Options as HumanizeDurationOptions } from "humanize-duration";
export declare const DATE_FORMAT_STORAGE_KEY = "dateFormat";
export declare const TIMEZONE_STORAGE_KEY = "timezone";
export declare const capitalize: (str: string) => string;
export declare const dateFilter: (dateString: string, format?: string) => any;
export declare function splitFirst(str: string, separator: string): string;
export declare function duration(isoString: string): number;
export declare function humanDuration(value: number | string, options?: HumanizeDurationOptions & {
    languages?: any;
}): string;
export declare function afterLastDot(str: string): string | undefined;
export declare function distinctFilter(value: any, index: number, array: any[]): boolean;
export declare function sanitizeForMarkdown(str: string): string;
declare const _default: {
    capitalize: (str: string) => string;
    dateFilter: (dateString: string, format?: string) => any;
    splitFirst: typeof splitFirst;
    duration: typeof duration;
    humanDuration: typeof humanDuration;
    afterLastDot: typeof afterLastDot;
    distinctFilter: typeof distinctFilter;
    sanitizeForMarkdown: typeof sanitizeForMarkdown;
};
export default _default;
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