export declare const api: {
    toString(): string;
    addEventListener(node: Node, eventName: string, fn: EventListener): (() => void) | undefined;
    prop(element: HTMLElement, name: string, value: any): any;
    attr(element: HTMLElement, name: string, value: string | null): void;
    comment(text?: string): Comment;
    text(text?: string): HTMLElement | Text;
    textContent(node: Node, text: string): void;
    fragment(): DocumentFragment;
    element(tagName?: string): HTMLElement;
    append(parent: HTMLElement | Node, child: HTMLElement | Node, targetIndex?: number): void;
    insert(parent: HTMLElement | Node, child: HTMLElement | Node, anchor?: HTMLElement | Node | null): void;
};