import { Key, NameOrCtorDef } from "./types";
declare global {
    interface Node {
        __incrementalDOMData: NodeData | null;
    }
}
export declare class NodeData {
    private _attrsArr;
    staticsApplied: boolean;
    readonly key: Key;
    text: string | undefined;
    readonly nameOrCtor: NameOrCtorDef;
    alwaysDiffAttributes: boolean;
    constructor(nameOrCtor: NameOrCtorDef, key: Key, text: string | undefined);
    hasEmptyAttrsArr(): boolean;
    getAttrsArr(length: number): Array<any>;
}
declare function initData(node: Node, nameOrCtor: NameOrCtorDef, key: Key, text?: string | undefined): NodeData;
declare function isDataInitialized(node: Node): boolean;
declare function importNode(node: Node): void;
declare function getData(node: Node, fallbackKey?: Key): NodeData;
declare function getKey(node: Node): Key;
declare function clearCache(node: Node): void;
export { getData, getKey, initData, importNode, isDataInitialized, clearCache };