docs: def ConnectHandler(*args, **kwargs):
      """Factory function selects the proper class and creates object based on device_type."""
      if kwargs["device_type"] not in platforms:
          raise ValueError(
              "Unsupported device_type: "
              "currently supported platforms are: {}".format(platforms_str)
          )
      ConnectionClass = ssh_dispatcher(kwargs["device_type"])
      return ConnectionClass(*args, **kwargs)