def METHOD_NAME(cls, time_index, label="sampling", root_dir="post_processing"):
    """
    Args:
        time_index (int): Time index to load
        label (str): Label used for this set of probes
        root_dir (path): Path to the post_processing directory
    """
    fpath = Path(root_dir) / ("%s%05d"%(label, time_index))
    return cls(fpath)