fix QueryParams type

Author: Dominik Zogg

README.md

@@ -18,7 +18,7 @@ This are the differences to the PHP version:
 Through [NPM](https://www.npmjs.com) as [@chubbyjs/psr-http-message][1].
 
 ```sh
-npm i @chubbyjs/[email protected].2
+npm i @chubbyjs/[email protected].3
 ```
 
 ## Copyright

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@chubbyjs/psr-http-message",
-  "version": "1.0.2",
+  "version": "1.0.3",
   "description": "Common Http-message Interface (PHP FIG PSR-7).",
   "keywords": [
     "psr",

src/ServerRequestInterface.ts

@@ -1,6 +1,6 @@
 import RequestInterface from './RequestInterface';
 
-export type QueryParams = Map<string, string | Array<string> | QueryParams>;
+export type QueryParams = Map<string, QueryParams> | Array<QueryParams> | string;
 export type ParsedBody = Map<string, ParsedBody> | Array<ParsedBody> | string | number | boolean | null;
 
 interface ServerRequestInterface extends RequestInterface {