export declare const NODE_TYPE: {
    readonly ELEMENT: 1;
    readonly TEXT: 3;
    readonly CDATA_SECTION: 4;
    readonly COMMENT: 8;
};
export declare function isElementNode(node: Node | null): node is Element;
export declare function isTextNode(node: Node | null): node is Text;
export declare function isCommentNode(node: Node | null): node is Comment;
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