fix(audio): correctly handle transcription streaming

Author: RobertCraigie

src/resources/audio/transcriptions.ts

@@ -40,7 +40,12 @@ export class Transcriptions extends APIResource {
   ): Core.APIPromise<TranscriptionCreateResponse | string | Stream<TranscriptionStreamEvent>> {
     return this._client.post(
       '/audio/transcriptions',
-      Core.multipartFormRequestOptions({ body, ...options, __metadata: { model: body.model } }),
+      Core.multipartFormRequestOptions({
+        body,
+        ...options,
+        stream: body.stream ?? false,
+        __metadata: { model: body.model },
+      }),
     );
   }
 }

src/streaming.ts

@@ -42,7 +42,11 @@ export class Stream<Item> implements AsyncIterable<Item> {
             continue;
           }
 
-          if (sse.event === null || sse.event.startsWith('response.')) {
+          if (
+            sse.event === null ||
+            sse.event.startsWith('response.') ||
+            sse.event.startsWith('transcript.')
+          ) {
             let data;
 
             try {