If statements for importing modules in python, good or bad?

Let's say we are creating a gpio pin interface for mulitple boards. For example:

if board == "raspberrypi":
    import RPi.GPIO as gpio
elif board == "bananapi":
    import BPi.GPIO as gpio

gpio.setmode(gpio.BCM)


class Pin:
    def __init__(self, pinNo):
        self.pin = pinNo

    def set(self):
        gpio.output(self.pin, 1)

This approach seems very simple and clear. However, I'm not sure how I would unittest this. But I've seen people do this. And what happens when a GPIO module that has different methods from RPi.GPIO enters?

A different approach would be to create a GPIO interface and have an adapter that makes sure GPIO module fits the interface.

class GPIOInterface:
    __metaclass__ = ABCMeta

    @abstractmethod
    def set(self, pin: int):
        pass


import RPi.GPIO
class GPIORaspberryAdapter(GPIOInterface):
    def __init__(self):
        RPi.GPIO.setmode(RPi.GPIO.BCM)

    def set(self, pin: int):
        RPi.GPIO.output(pin, 1)

Then you simply inject it into the Pin class:

class Pin:
    def __init__(self, pinNo: int, gpio:GPIOInterface):
        self.pin = pinNo
        self.gpio = gpio

    def set(self):
        self.gpio.set(self.pin)

Which way is better and why?