class DogvsCatDataset(Dataset):
    def __init__(self, file_list, transform=None, phase='train'):
        self.file_list = file_list
        self.transform = transform
        self.phase = phase

    def __len__(self):
        return len(self.file_list)

    def __getitem__(self, idx):
        img_path = self.file_list[idx]
        img = Image.open(img_path)
        img_transformed = self.transform(img, self.phase)

        label = img_path.split('/')[-1].split('.')[0]
        if label == 'dog':
            label = 1
        elif label == 'cat':
            label = 0
        return img_transformed, label