def get_model()

in src/agents/models/openai_provider.py [0:0]


    def get_model(self, model_name: str | None) -> Model:
        if model_name is None:
            model_name = DEFAULT_MODEL

        client = self._get_client()

        return (
            OpenAIResponsesModel(model=model_name, openai_client=client)
            if self._use_responses
            else OpenAIChatCompletionsModel(model=model_name, openai_client=client)
        )