def METHOD_NAME(coco_visiondata_train):
    images = next(iter(coco_visiondata_train.batch_loader))['images']
    results = calc_default_image_properties(images)
    assert_that(results.keys(),
                contains_exactly('Aspect Ratio', 'Area', 'Brightness', 'RMS Contrast', 'Mean Red Relative Intensity',
                                 'Mean Green Relative Intensity', 'Mean Blue Relative Intensity'))
    assert_that(sum(results['Brightness']), close_to(15.563, 0.01))