def get_quantization_info(self, name: str) -> None:
        """
        Retrieves the information added via add_quantization_info, if applicable.
        Returns None if quantization parameters could not be found.
        """
        if name not in self._quant_param_map:
            return None
        return self._quant_param_map[name]

        Retrieves the information added via add_quantization_info, if applicable.
        Returns None if quantization parameters could not be found.
        
coremltools/converters/mil/frontend/torch/converter.py