Decorator documentation

# Documentation
DOCUMENTATION_MODE = "DOCUMENTATION" in sys.argv
if DOCUMENTATION_MODE:
    doc_titles: Dict[str, list] = {}

def doc_category(cat: str, manual: Optional[bool] = False, path: Optional[str]=None):
    """
    Used for marking under which category this should
    be put when auto generating documentation.

    Parameters
    ------------
    cat: str
        The name of the category to put this in.
    manual: Optional[bool]
        Should documentation be manually generated
    path: Optional[str]
        Custom path to the object.

    Returns
    ----------
    Decorator
        Returns decorator which marks the object
        to the category.
    """
    def _category(item):
        if DOCUMENTATION_MODE:
            doc_titles[cat].append((item, manual, path))
        return item

    if DOCUMENTATION_MODE:
        if cat not in doc_titles:
            doc_titles[cat] = []

    return _category