Fix get method

Author: dominikzogg

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].0
+npm i @chubbyjs/[email protected].1
 ```
 
 ## Copyright

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@chubbyjs/psr-http-message",
-  "version": "1.2.0",
+  "version": "1.2.1",
   "description": "Common Http-message Interface (PHP FIG PSR-7).",
   "keywords": [
     "psr",

src/RequestInterface.ts

@@ -16,7 +16,7 @@ export enum Method {
 interface RequestInterface extends MessageInterface {
     getRequestTarget(): string;
     withRequestTarget(requestTarget: string): this;
-    getMethod(): string;
+    getMethod(): Method;
     withMethod(name: Method): this;
     getUri(): UriInterface;
     withUri(uri: UriInterface, preserveHost?: boolean): this;