export declare const isFunction: (functionToCheck: any) => any;
export declare const convertTo24Hour: (time12h: string) => string;
export declare const convertTo12Hour: (time24: string) => string;
export declare const isValid12HourTime: (timeString: string) => boolean;
export declare const UNIT_MULTIPLIERS: Record<string, number>;
export declare function normalizeStorageValue(value: string): {
    normalizedValue: number;
    unit: string;
    value: number;
};
export declare function formatMemoryValue(valueInBytes: number): string;
export declare const formatDateISTRegular: (dateString: string) => string;
export declare const replaceSpaceWithUnderScore: (value: string) => string;
export declare function secondsToHHMMSS(totalSeconds: number): string;
export declare function downloadICSFile(icsContent: string, fileName?: string): void;
export declare function generateICS(title: string, description: string, location: string, startDate: Date, endDate: Date): string;