export declare function getStartAndEndRangeText(start: Text, startOffset: number, end: Text, endOffset: number): {
    start: string;
    end: string;
};
export declare function getTextNodeRects(node: Text, startOffset?: number, endOffset?: number): DOMRect[];
export declare function getCharRect(node: Text, offset: number): DOMRect;
export declare function getTextNodesByDfs(start: Text, end: Text): Text[];
export declare function uuid(len?: number, radix?: number): string;
export declare function debounce<T extends (...arg: any[]) => any>(fn: T, delay?: number): (...args: Parameters<T>) => void;