Sample of docstrings and type hinting

datetime_typehints.py

"""
datetime_typehints
by a now deleted user from Reddit
Example of docstrings and type annotations (type hints) in code.
Reddit article link: 
https://www.reddit.com/r/learnpython/comments/qcbz67/type_hinting_for_datetimedate_and_datetimetime/
"""

import datetime


def unnecessary_function(date_string: str) -> datetime.date:
    """returns a date object in isoformat"""
    return datetime.date.fromisoformat(date_string)


if __name__ == '__main__':
    print(unnecessary_function("2022-02-02"))