def load_labels(label_file: str):
    """Loads a labels file containing a label per line.

    Args:
        label_file (str): Labels file path.

    Returns:
        list: List of labels read from a file.
    """
    with open(label_file, 'r') as f:
        labels = [l.rstrip() for l in f]
        return labels
    return None