def METHOD_NAME(client, new_dataset):
    key = 'Name'
    value = 'Guthrum'
    body = json.dumps({
        'description_fields': {
            key: value
        }
    })
    ds_id = os.path.basename(new_dataset.path)
    update_response = client.simulate_post(
        '/datasets/{}/description'.format(ds_id), body=body)
    assert update_response.status == falcon.HTTP_OK
    updated_ds = json.loads(
        update_response.content) if update_response.content else None
    assert updated_ds is not None
    check_response = client.simulate_get(
        '/datasets/{}/files/dataset_description.json'.format(ds_id))
    assert check_response.status == falcon.HTTP_OK
    decoded_response = check_response.content.decode('utf-8')
    # Verify the 4 space indent in the encoded file
    assert decoded_response[:6] == '{\n    '
    assert decoded_response[6] != ' '