code: func validateConfigTransaction(data []byte, hdr *common.Header) error {
  	putilsLogger.Debugf("validateConfigTransaction starts for data %p, header %s", data, hdr)
  
  	// check for nil argument
  	if data == nil || hdr == nil {
  		return errors.New("nil arguments")
  	}
  
  	// There is no need to do this validation here, the configtx.Validator handles this
  
  	return nil
  }
docs: // validateConfigTransaction validates the payload of a
  // transaction assuming its type is CONFIG