code: def _send_to_group(self, group, **kwargs):
          
          retries = kwargs.get("retries", self.repeat_commands)
          for _ in range(retries):
              if kwargs.get("send_on", True):
                  self.on(group)
              if group is None or group == 0:
                  self._send_to_all_groups(**kwargs)
                  continue
  
              if group < 1 or group > 4:
                  raise AttributeError("Group must be between 1 and 4 (was %s)" % group)
  
              if kwargs.get("per_group"):
                  self._send_command(kwargs.get("%s_cmd" % self.get_group_type(group), [None, None, None, None])[group - 1])
                  continue
              if self.get_group_type(group) == "white":
                  command = self.WHITE_COMMANDS.get(kwargs["command"])
              elif self.get_group_type(group) == "rgbw":
                  if kwargs["command"] == "color_by_int":
                      command = (self.RGBW_COMMANDS["color_by_int"], struct.pack("B", kwargs["color"]))
                  else:
                      command = self.RGBW_COMMANDS.get(kwargs["command"])
              self._send_command(command)
docs: You shouldn't use this method directly.
  
          Send a single command to specific group.
  
          Handles automatically sending command to white or rgbw group.