def METHOD_NAME(self):
    """
    This function prepares a list of random PIL images of the same fixed size.
    """
    image_inputs = [np.random.randint(255, size=(3, 30, 400), dtype=np.uint8)]
    image_inputs = [Image.fromarray(np.moveaxis(x, 0, -1)) for x in image_inputs]
    return image_inputs