What's the meaning here in RandomSampleCrop_v2 ?

In the transform.py->RandomSampleCrop_v2( ), there is

            w = random.uniform(0.3 * width, width)
            h = random.uniform(0.3 * height, height)

            # aspect ratio constraint b/t .5 & 2
            if h / w != 1:
                continue

If written in this, how can the code below be achieved??

indeed it is wrong