code: def sysctl(command):
      
      out = subprocess.check_output(command)
      result = out.split(b" ")[1]
      try:
          return int(result)
      except ValueError:
          return result
docs: Run a sysctl command and parse the output.
  
      Args:
          command: A sysctl command with an argument, for example,
              ["sysctl", "hw.memsize"].
  
      Returns:
          The parsed output.