Fashion-MNIST is a dataset of Zalando's article images -- consisting of a
 training set of 60,000 examples and a test set of 10,000 examples. Each
 example is a 28x28 grayscale image, associated with a label from 10 classes.
 The author intends Fashion-MNIST to serve as a direct **drop-in replacement**
 for the original MNIST dataset for benchmarking machine learning algorithms.
 It shares the same image size and structure of training and testing splits.