export declare enum NodeOrder {
    Preorder = 0,
    Postorder = 1
}
export declare function getTNodes(e: Element): HTMLElement[] | null;
export declare function getAncestorAttribute(e: HTMLElement | SVGElement, attr: string): string | null;
export declare function copyAttributes(from: Element, to: Element): void;
export declare function isShow(e: HTMLElement | SVGElement): boolean;
export declare function getDescendantsByPreorder(e: Element): Element[];
export declare function getDescendantsByPostorder(e: Element): Element[];
export declare function getDescendants(e: Element, order?: NodeOrder): Element[];
export declare function getChildren(e: Element): Element[];
export declare function getChildByNodeName(e: Element, name: string): Element | null;
export declare function isInsideElement(element: Element): boolean;
export declare function removeInvisibleCharacters(text: string): string;
export declare function getSVGSVGAncestor(e: HTMLElement | SVGElement): SVGSVGElement | null;
export declare function getSubAttributeFromAncestors(e: Element, subName: string): Map<string, string>;
export declare function getAttributeFromAncestors(e: Element, attrName: string): string | null;