export declare function formatDuration(totalMinutes: number): string;
export declare class DateRange {
    private range;
    constructor(dateRange: {
        start: Date;
        end: Date;
    });
    private format;
    formatWith(format?: string, divider?: string): string;
}
export declare class Days {
    private days;
    constructor(days: string[]);
    private static weekday;
    private static weekend;
    static list: readonly string[];
    private validateInclude;
    get isDaily(): boolean;
    get includeWeekday(): boolean;
    get includeWeekend(): boolean;
    format(): string;
}