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**描述BUG**

自己的轉發api出錯，電腦上的其他廠牌客戶端正常顯示

**截图**

**Log**

**设备** Android14 samsung s21

type 'String' is not a subtype of type 'num?' in type cast

```#0 _$$CreateChatCompletionStreamResponseImplFromJson (package:openai_dart/src/generated/schema/schema.g.dart:1015)
#1 new _$CreateChatCompletionStreamResponseImpl.fromJson (package:openai_dart/src/generated/schema/schema.freezed.dart:11330)
#2 _$CreateChatCompletionStreamResponseFromJson (package:openai_dart/src/generated/schema/schema.freezed.dart:11061)
#3 new CreateChatCompletionStreamResponse.fromJson (package:openai_dart/src/generated/schema/create_chat_completion_stream_response.dart:57)
#4 OpenAIClient.createChatCompletionStream. (package:openai_dart/src/client.dart:109)
#5 _MapStream._handleData (dart:async/stream_pipe.dart:247)
#6 _ForwardingStreamSubscription._handleData (dart:async/stream_pipe.dart:184)
#7 _rootRunUnary (dart:async/zone.dart:1538)
#8 _CustomZone.runUnary (dart:async/zone.dart:1429)
#9 _CustomZone.runUnaryGuarded (dart:async/zone.dart:1329)
#10 _BufferingStreamSubscription._sendData (dart:async/stream_impl.dart:381)
#11 _BufferingStreamSubscription._add (dart:async/stream_impl.dart:312)
#12 _ForwardingStreamSubscription._add (dart:async/stream_pipe.dart:154)
#13 _MapStream._handleData (dart:async/stream_pipe.dart:252)
#14 _ForwardingStreamSubscription._handleData (dart:async/stream_pipe.dart:184)
#15 _rootRunUnary (dart:async/zone.dart:1538)
#16 _CustomZone.runUnary (dart:async/zone.dart:1429)
#17 _CustomZone.runUnaryGuarded (dart:async/zone.dart:1329)
#18 _BufferingStreamSubscription._sendData (dart:async/stream_impl.dart:381)
#19 _BufferingStreamSubscription._add (dart:async/stream_impl.dart:312)
#20 _ForwardingStreamSubscription._add (dart:async/stream_pipe.dart:154)
#21 _WhereStream._handleData (dart:async/stream_pipe.dart:229)
#22 _ForwardingStreamSubscription._handleData (dart:async/stream_pipe.dart:184)
#23 _rootRunUnary (dart:async/zone.dart:1538)
#24 _CustomZone.runUnary (dart:async/zone.dart:1429)
#25 _CustomZone.runUnaryGuarded (dart:async/zone.dart:1329)
#26 _BufferingStreamSubscription._sendData (dart:async/stream_impl.dart:381)
#27 _BufferingStreamSubscription._add (dart:async/stream_impl.dart:312)
#28 _SinkTransformerStreamSubscription._add (dart:async/stream_transformers.dart:67)
#29 _EventSinkWrapper.add (dart:async/stream_transformers.dart:13)
#30 _StringAdapterSink.add (dart:convert/string_conversion.dart:228)
#31 _LineSplitterSink._addLines (dart:convert/line_splitter.dart:167)
#32 _LineSplitterSink.addSlice (dart:convert/line_splitter.dart:134)
#33 StringConversionSink.add (dart:convert/string_conversion.dart:39)
#34 _SinkTransformerStreamSubscription._handleData (dart:async/stream_transformers.dart:115)
#35 _rootRunUnary (dart:async/zone.dart:1538)
#36 _CustomZone.runUnary (dart:async/zone.dart:1429)
#37 _CustomZone.runUnaryGuarded (dart:async/zone.dart:1329)
#38 _BufferingStreamSubscription._sendData (dart:async/stream_impl.dart:381)
#39 _BufferingStreamSubscription._add (dart:async/stream_impl.dart:312)
#40 _SinkTransformerStreamSubscription._add (dart:async/stream_transformers.dart:67)
#41 _EventSinkWrapper.add (dart:async/stream_transformers.dart:13)
#42 _StringAdapterSink.add (dart:convert/string_conversion.dart:228)
#43 _StringAdapterSink.addSlice (dart:convert/string_conversion.dart:233)
#44 _Utf8ConversionSink.addSlice (dart:convert/string_conversion.dart:313)
#45 _Utf8ConversionSink.add (dart:convert/string_conversion.dart:306)
#46 _ConverterStreamEventSink.add (dart:convert/chunked_conversion.dart:70)
#47 _SinkTransformerStreamSubscription._handleData (dart:async/stream_transformers.dart:115)
#48 _rootRunUnary (dart:async/zone.dart:1538)
#49 _CustomZone.runUnary (dart:async/zone.dart:1429)
#50 _CustomZone.runUnaryGuarded (dart:async/zone.dart:1329)
#51 _BufferingStreamSubscription._sendData (dart:async/stream_impl.dart:381)
#52 _BufferingStreamSubscription._add (dart:async/stream_impl.dart:312)
#53 _ForwardingStreamSubscription._add (dart:async/stream_pipe.dart:154)
#54 _HandleErrorStream._handleData (dart:async/stream_pipe.dart:287)
#55 _ForwardingStreamSubscription._handleData (dart:async/stream_pipe.dart:184)
#56 _rootRunUnary (dart:async/zone.dart:1538)
#57 _CustomZone.runUnary (dart:async/zone.dart:1429)
#58 _CustomZone.runUnaryGuarded (dart:async/zone.dart:1329)
#59 _BufferingStreamSubscription._sendData (dart:async/stream_impl.dart:381)
#60 _BufferingStreamSubscription._add (dart:async/stream_impl.dart:312)
#61 _ForwardingStreamSubscription._add (dart:async/stream_pipe.dart:154)
#62 _HandleErrorStream._handleData (dart:async/stream_pipe.dart:287)
#63 _ForwardingStreamSubscription._handleData (dart:async/stream_pipe.dart:184)
#64 _rootRunUnary (dart:async/zone.dart:1538)
#65 _CustomZone.runUnary (dart:async/zone.dart:1429)
#66 _CustomZone.runUnaryGuarded (dart:async/zone.dart:1329)
#67 _BufferingStreamSubscription._sendData (dart:async/stream_impl.dart:381)
#68 _DelayedData.perform (dart:async/stream_impl.dart:573)
#69 _PendingEvents.handleNext (dart:async/stream_impl.dart:678)
#70 _PendingEvents.schedule. (dart:async/stream_impl.dart:649)
#71 _rootRun (dart:async/zone.dart:1517)
#72 _CustomZone.run (dart:async/zone.dart:1422)
#73 _CustomZone.runGuarded (dart:async/zone.dart:1321)
#74 _CustomZone.bindCallbackGuarded. (dart:async/zone.dart:1362)
#75 _rootRun (dart:async/zone.dart:1525)
#76 _CustomZone.run (dart:async/zone.dart:1422)
#77 _CustomZone.runGuarded (dart:async/zone.dart:1321)
#78 _CustomZone.bindCallbackGuarded. (dart:async/zone.dart:1362)
#79 _microtaskLoop (dart:async/schedule_microtask.dart:40)
#80 _startMicrotaskLoop (dart:async/schedule_microtask.dart:49)
```

Start with the failing cast at src/generated/schema/schema.g.dart:1015 and trace it through schema.freezed.dart, create_chat_completion_stream_response.dart, and client.dart. Reproduce the stream response from the forwarded API, identify the mismatched value, and verify that the response is parsed without the reported type-cast error.

Written by the indexing model from the issue text.