def __call__()

in sampler/responses_sampler.py [0:0]


    def __call__(self, message_list: MessageList) -> str:
        if self.system_message:
            message_list = [self._pack_message("developer", self.system_message)] + message_list
        trial = 0
        while True:
            try:
                if self.reasoning_model:
                    reasoning = ({"effort": self.reasoning_effort} if self.reasoning_effort else None)
                    response = self.client.responses.create(
                        model=self.model,
                        input=message_list,
                        reasoning=reasoning,
                    )
                else:
                    response = self.client.responses.create(
                        model=self.model,
                        input=message_list,
                        temperature=self.temperature,
                        max_output_tokens=self.max_tokens,
                    )
                return response.output_text
            except openai.BadRequestError as e:
                print("Bad Request Error", e)
                return ""
            except Exception as e:
                exception_backoff = 2**trial  # expontial back off
                print(
                    f"Rate limit exception so wait and retry {trial} after {exception_backoff} sec",
                    e,
                )
                time.sleep(exception_backoff)
                trial += 1