export declare function isNode(sth: any): sth is Node;
export declare function isSVGElement(node: Element): node is SVGElement;
export declare function isUseElement(node: Element): node is SVGUseElement;
export declare function isElementNode(node: Node): node is Element;
export declare function isCommentNode(node: Node): node is Comment;
export declare function isTextNode(node: Node): node is Text;
export declare function isDocument(node: Node): node is Document;
export declare function isRootNode(node: Node): node is Document | DocumentFragment;
type TagTypeMap = {
    html: HTMLHtmlElement;
    body: HTMLBodyElement;
    img: HTMLImageElement;
    input: HTMLInputElement;
    textarea: HTMLTextAreaElement;
    select: HTMLSelectElement;
    label: HTMLLabelElement;
    iframe: HTMLIFrameElement;
    style: HTMLStyleElement | SVGStyleElement;
    link: HTMLLinkElement;
    canvas: HTMLCanvasElement;
    slot: HTMLSlotElement;
};
export declare function hasTag<T extends keyof TagTypeMap>(el: Node, tagName: T): el is TagTypeMap[typeof tagName];
export {};