interface Options {
    preformattedCode?: boolean;
}
interface FlankingWhitespace {
    leading: string;
    trailing: string;
}
export interface ExtendedNode extends Element {
    isBlock: boolean;
    isCode: boolean;
    isBlank: boolean;
    flankingWhitespace: FlankingWhitespace;
}
export declare function ExtendedNode(node: Node, options: Options): ExtendedNode;
export declare const NodeTypes: {
    readonly Element: 1;
    readonly Text: 3;
    readonly CDATASection: 4;
    readonly Comment: 8;
};
export type NodeType = typeof NodeTypes[keyof typeof NodeTypes];
export {};