class_names in mnist dataset code example

Example: how to display the first 25 images from training dataset

plt.figure(figsize=(10,10))for i in range(25):    plt.subplot(5,5,i+1)    plt.xticks([])    plt.yticks([])    plt.grid(False)    plt.imshow(train_images[i], cmap=plt.cm.binary)    plt.xlabel(class_names[train_labels[i]])plt.show()