interfaceurl.URLSearchParamsinterface URLSearchParamsreadonly size: numberappend(name: string,value: string): void;delete(name: string,value?: string): void;entries(): URLSearchParamsIterator<[string, string]>;forEach(callbackfn: (value: string, key: string, parent: URLSearchParams) => void,thisArg?: any): void;get(name: string): null | string;getAll(name: string): string[];has(name: string,value?: string): boolean;keys(): URLSearchParamsIterator<string>;set(name: string,value: string): void;sort(): void;values(): URLSearchParamsIterator<string>;