def _get_unique_split_data(split_test_targets):
    """Returns all split_test_target 'data' dependencies without duplicates."""
    data = []
    for split_name in split_test_targets:
        split_data = split_test_targets[split_name].get("data", default = [])
        [data.append(d) for d in split_data if d not in data]
    return data