SVGPointList
interface SVGPointList {
[index: number]: DOMPoint;
readonly length: number;
readonly numberOfItems: number;
[[Symbol.iterator]](): IterableIterator<DOMPoint>;
clear(): void;
getItem(index: number): DOMPoint;
removeItem(index: number): DOMPoint;
}var SVGPointList: {
prototype: SVGPointList;
new (): SVGPointList;
};