Added a very complicated AsyncIterableReader class.

The class was already implemented in
"https://deno.land/std@0.144.0/streams/conversion.ts".  So, I litterally
lost 1 day of work!  I hate myself.

vendor/deno.land/std@0.188.0/http/method.ts

@@ -0,0 +1,59 @@
+// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
+// This module is browser compatible.
+
+/**
+ * Contains the constant {@linkcode HTTP_METHODS} and the type
+ * {@linkcode HttpMethod} and the type guard {@linkcode isHttpMethod} for
+ * working with HTTP methods with type safety.
+ *
+ * @module
+ */
+
+/** A constant array of common HTTP methods.
+ *
+ * This list is compatible with Node.js `http` module.
+ */
+export const HTTP_METHODS = [
+  "ACL",
+  "BIND",
+  "CHECKOUT",
+  "CONNECT",
+  "COPY",
+  "DELETE",
+  "GET",
+  "HEAD",
+  "LINK",
+  "LOCK",
+  "M-SEARCH",
+  "MERGE",
+  "MKACTIVITY",
+  "MKCALENDAR",
+  "MKCOL",
+  "MOVE",
+  "NOTIFY",
+  "OPTIONS",
+  "PATCH",
+  "POST",
+  "PROPFIND",
+  "PROPPATCH",
+  "PURGE",
+  "PUT",
+  "REBIND",
+  "REPORT",
+  "SEARCH",
+  "SOURCE",
+  "SUBSCRIBE",
+  "TRACE",
+  "UNBIND",
+  "UNLINK",
+  "UNLOCK",
+  "UNSUBSCRIBE",
+] as const;
+
+/** A type representing string literals of each of the common HTTP method. */
+export type HttpMethod = typeof HTTP_METHODS[number];
+
+/** A type guard that determines if a value is a valid HTTP method. */
+export function isHttpMethod(value: unknown): value is HttpMethod {
+  return HTTP_METHODS.includes(value as HttpMethod);
+}