human
Complete this python program:
def checker(*suffixes, **kwds):
assistant
#Here is the Python program you requested.

    """Decorator to register a function as a checker.
    """
    def deco(func):
        for suffix in suffixes:
            checkers.setdefault(suffix, []).append(func)
        for prop in checker_props:
            setattr(func, prop, kwds.get(prop, checker_props[prop]))
        return func
    return deco