export interface IAnimate {
    start: (duration: number, callbackFn: (elapsedTime: number) => void, onComplete?: () => void) => void;
    stop: () => void;
    pause: () => void;
    resume: () => void;
    getProgress: () => number | undefined;
}
export declare const animate: () => IAnimate;
interface ChildIsVisibleInput {
    parent: HTMLElement;
    child: HTMLElement;
    threshold?: number;
    leftOffset?: number;
    rightOffset?: number;
}
export declare const childIsVisible: ({ parent, child, threshold, leftOffset, rightOffset }: ChildIsVisibleInput) => boolean;
export declare const debounce: (fn: () => void, ms?: number) => (this: any, ...args: any | any[]) => void;
export declare const getMaxZIndex: () => number;
export declare const isBrowser: boolean;
export declare const isDarkMode: () => boolean;
export declare const isString: (str: unknown) => str is string;
export declare const isNodeEmpty: (elem: HTMLElement | null) => boolean;
export {};