def get_llm_config(self, name: str = 'llm') -> LLMConfig:
        """'llm' is the name for default config (for backward compatibility prior to 0.8)."""
        if name in self.llms:
            return self.llms[name]
        if name is not None and name != 'llm':
            logger.openhands_logger.warning(
                f'llm config group {name} not found, using default config'
            )
        if 'llm' not in self.llms:
            self.llms['llm'] = LLMConfig()
        return self.llms['llm']
'llm' is the name for default config (for backward compatibility prior to 0.8).
openhands/core/config/openhands_config.py