feat: [STG-1607] Yield finished SSE event instead of silently dropping it

Author: stainless-app[bot]

.stats.yml

@@ -1,4 +1,4 @@
 configured_endpoints: 8
 openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/browserbase%2Fstagehand-573d364768ac1902ee5ed8b2485d3b293bda0ea8ff7898aef1a3fd6be79b594a.yml
 openapi_spec_hash: 107ec840f4330885dd2232a05a66fed7
-config_hash: 0209737a4ab2a71afececb0ff7459998
+config_hash: ab1c1122e862f9bdb6db4df36d489701

src/stagehand/_streaming.py

@@ -60,7 +60,7 @@ def __stream__(self) -> Iterator[_T]:
         try:
             for sse in iterator:
                 if sse.data.startswith('{"data":{"status":"finished"'):
-                    break
+                    yield process_data(data=sse.json(), cast_to=cast_to, response=response)
 
                 if sse.data.startswith("error"):
                     body = sse.data
@@ -145,7 +145,7 @@ async def __stream__(self) -> AsyncIterator[_T]:
         try:
             async for sse in iterator:
                 if sse.data.startswith('{"data":{"status":"finished"'):
-                    break
+                    yield process_data(data=sse.json(), cast_to=cast_to, response=response)
 
                 if sse.data.startswith("error"):
                     body = sse.data