sync mode on

node_modules/thread-stream/test/ts/to-file.ts

@@ -0,0 +1,10 @@
+import { type PathLike, type WriteStream, createWriteStream } from 'fs'
+import { once } from 'events'
+
+export default async function run (
+  opts: { dest: PathLike },
+): Promise<WriteStream> {
+  const stream = createWriteStream(opts.dest)
+  await once(stream, 'open')
+  return stream
+}