code: def enable(self, cmd="", pattern="ssword", re_flags=re.IGNORECASE):
          
          output = ""
          msg = (
              "Failed to enter enable mode. Please ensure you pass "
              "the 'secret' argument to ConnectHandler."
          )
          if not self.check_enable_mode():
              self.write_channel(self.normalize_cmd(cmd))
              try:
                  output += self.read_until_prompt_or_pattern(
                      pattern=pattern, re_flags=re_flags
                  )
                  self.write_channel(self.normalize_cmd(self.secret))
                  output += self.read_until_prompt()
              except NetMikoTimeoutException:
                  raise ValueError(msg)
              if not self.check_enable_mode():
                  raise ValueError(msg)
          return output
docs: Enter enable mode.
  
          :param cmd: Device command to enter enable mode
          :type cmd: str
  
          :param pattern: pattern to search for indicating device is waiting for password
          :type pattern: str
  
          :param re_flags: Regular expression flags used in conjunction with pattern
          :type re_flags: int