langchain/llms/petals.py/Petals/_default_params
class Petals:    def _default_params(self) -> Dict[str, Any]:
        """Get the default parameters for calling Petals API."""
        normal_params = {
            "temperature": self.temperature,
            "max_new_tokens": self.max_new_tokens,
            "top_p": self.top_p,
            "top_k": self.top_k,
            "do_sample": self.do_sample,
            "max_length": self.max_length,
        }
        return {**normal_params, **self.model_kwargs}