def METHOD_NAME(self, value) -> list[str]:
    def conv2float(data: str) -> float:
        try:
            return 10 ** (float(data.strip()) / 20)
        except ValueError:
            return 0.0
    logger.debug("Read: %s", value)
    if value == "data 0":
        self._sweepdata = [
            f"{conv2float(line)} 0.0"
            for line in self.exec_command("data 0")
        ]
    return self._sweepdata