code: func (i *INA3221Driver) GetCurrent(channel INA3221Channel) (float64, error) {
  	value, err := i.GetShuntVoltage(channel)
  	if err != nil {
  		return 0, err
  	}
  
  	ma := value / ina3221ShuntResistorValue
  	return ma, nil
  }
docs: // GetCurrent gets the current value in mA, taking into account the config settings and current LSB