Fix Issue langchain-ai#20453: Change _call_eas to return bytes instea…

…d of str

libs/community/langchain_community/chat_models/pai_eas_endpoint.py

@@ -227,7 +227,7 @@ def _call_eas(self, query_body: dict) -> Any:
                 f" and message {response.text}"
             )
 
-        return response.text
+        return response.content
 
     def _call_eas_stream(self, query_body: dict) -> Any:
         """Generate text from the eas service."""