write method can return anything

saschanaz · web-flow · commit f4cb63975932 · 2017-04-13T00:07:55.000+09:00
as anything will be resolved to Promise. Based on comment here: whatwg/streams#45 (comment)
diff --git a/types/whatwg-streams/index.d.ts b/types/whatwg-streams/index.d.ts
@@ -95,7 +95,7 @@ declare class ReadableStreamBYOBRequest {
 
 interface WritableStreamSink {
     start?(controller: WritableStreamDefaultController): void | Promise<void>;
-    write?(chunk: any, controller?: WritableStreamDefaultController): void | Promise<any>;
+    write?(chunk: any, controller?: WritableStreamDefaultController): any;
     close?(controller: WritableStreamDefaultController): void | Promise<void>;
     abort?(reason: string): void | Promise<void>;
 }

Original file line number	Diff line number	Diff line change
`@@ -95,7 +95,7 @@ declare class ReadableStreamBYOBRequest {`
`95`	`95`
`96`	`96`	`interface WritableStreamSink {`
`97`	`97`	`start?(controller: WritableStreamDefaultController): void \| Promise<void>;`
`98`		`- write?(chunk: any, controller?: WritableStreamDefaultController): void \| Promise<any>;`
	`98`	`+ write?(chunk: any, controller?: WritableStreamDefaultController): any;`
`99`	`99`	`close?(controller: WritableStreamDefaultController): void \| Promise<void>;`
`100`	`100`	`abort?(reason: string): void \| Promise<void>;`
`101`	`101`	`}`