code: func (i *INA3221Driver) Start() error {
  	var err error
  	bus := i.GetBusOrDefault(i.connector.GetDefaultBus())
  	address := i.GetAddressOrDefault(int(ina3221Address))
  
  	if i.connection, err = i.connector.GetConnection(address, bus); err != nil {
  		return err
  	}
  
  	if err := i.initialize(); err != nil {
  		return err
  	}
  
  	return nil
  }
docs: // Start initializes the INA3221