import './types';
import { MutableAttr } from './types';
export declare function _findNodeIndex(list: Node[], node: Node): number;
export declare function _addNamedNode(el: Element, list: Attr[], newAttr: MutableAttr, oldAttr: Attr | null): void;
export declare function _removeNamedNode(el: Element, list: Attr[], attr: MutableAttr): void;