data/example_data.py

from torchvision import datasets, transforms
from torch.utils.data import DataLoader


def load_mnist():
    transform = transforms.Compose([transforms.ToTensor(), transforms.Normalize((0.5,), (0.5,))])
    train_dataset = datasets.MNIST(root='./data', train=True, download=True, transform=transform)
    test_dataset = datasets.MNIST(root='./data', train=False, download=True, transform=transform)

    train_loader = DataLoader(train_dataset, batch_size=64, shuffle=True)
    test_loader = DataLoader(test_dataset, batch_size=64, shuffle=False)

    return {'train': train_loader, 'test': test_loader}