return
         elif detector.board.binho_nova:
             from adafruit_blinka.microcontroller.nova.i2c import I2C
         elif detector.board.microchip_mcp2221:
             from adafruit_blinka.microcontroller.mcp2221.i2c import I2C
             return
         elif detector.board.binho_nova:
             from adafruit_blinka.microcontroller.nova.i2c import I2C
         elif detector.board.microchip_mcp2221:
             from adafruit_blinka.microcontroller.mcp2221.i2c import I2C