code: func (s *SHT3xDriver) Heater() (status bool, err error) {
  	sr, err := s.getStatusRegister()
  	if err == nil {
  		if (1 << 13) == (sr & (1 << 13)) {
  			status = true
  		}
  	}
  	return
  }
docs: // Heater returns true if the heater is enabled