docs: def run_subprocess(command):
      """
      command is the command to run, as a string.
      runs a subprocess, returns stdout and stderr from the subprocess as strings.
      """
      x = Popen(command, shell=True, stdout=PIPE, stderr=PIPE)
      out, err = x.communicate()
      out = out.decode('utf-8')
      err = err.decode('utf-8')
      return out, err