Describe the bug
I used following codes to load the Mnist dataset
"
pip install tensorflow_datasets
import tensorflow_datasets as tfds
ds = tfds.load('mnist', data_dir ='/home/jovyan/tensorflow_datasets', split='train', shuffle_files=True)
"
It did not load the dataset but returned a error message
"Downloading and preparing dataset Unknown size (download: Unknown size, generated: Unknown size, total: Unknown size) to /home/jovyan/tensorflow_datasets/mnist/3.0.1..."
Please whitelist "tensorflow_datasets" so that the datasets can be downloaded to Sandbox directories.
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