code: def get_cpu_info(self) -> str:
          '''Show device CPU information.'''
          output, _ = self._execute(
              '-s', self.device_sn, 'shell', 'cat', '/proc/cpuinfo')
          return outpuf get_cpu_info(self) -> str:
          '''Show device CPU information.'''
          output, _ = self._execute(
              '-s', self.device_sn, 'shell', 'cat', '/proc/cpuinfo')
          return output
docs: Show device CPU information.