code: func RequestRejoinParamSetup(maxTimeN, maxCountN int) storage.MACCommandBlock {
  	return storage.MACCommandBlock{
  		CID: lorawan.RejoinParamSetupReq,
  		MACCommands: []lorawan.MACCommand{
  			{
  				CID: lorawan.RejoinParamSetupReq,
  				Payload: &lorawan.RejoinParamSetupReqPayload{
  					MaxTimeN:  uint8(maxTimeN),
  					MaxCountN: uint8(maxCountN),
  				},
  			},
  		},
  	}
  }
docs: // RequestRejoinParamSetup modifies the rejoin-request interval parameters.