code: def _send_command_wrapper(self, cmd):
          
          cached_results = self._results_cache.get(cmd)
          if not cached_results:
              response = self._send_command(cmd)
              self._results_cache[cmd] = response
              return response
          else:
              return cached_results
docs: Send command to the remote device with a caching feature to avoid sending the same command
          twice based on the SSH_MAPPER_BASE dict cmd key.
  
          Parameters
          ----------
          cmd : str
              The command to send to the remote device after checking cache.
  
          Returns
          -------
          response : str
              The response from the remote device.