human
What is a the Python program you requested given the following:
Complete the below
def cache1lvl(maxsize=100):

    ''''modified version of http://code.activestate.com/recipes/498245/'
    '''
assistant
#Here is the Python program you requested.
    def decorating_function(user_function):
        cache = {}
        use_count = Counter()
        @functools.wraps(user_function)
        def wrapper(key, *args, **kwargs):
            try:
                result = cache[key]
            except KeyError:
                if (len(cache) == maxsize):
                    for (k, _) in nsmallest(((maxsize // 10) or 1), use_count.iteritems(), key=itemgetter(1)):
                        del cache[k], use_count[k]
                cache[key] = user_function(key, *args, **kwargs)
                result = cache[key]
            finally:
                use_count[key] += 1
            return result
        def clear():
            cache.clear()
            use_count.clear()
        def delete(key):
            try:
                del cache[key]
                del use_count[key]
            except KeyError:
                return False
            else:
                return True
        wrapper.clear = clear
        wrapper.cache = cache
        wrapper.delete = delete
        return wrapper
    return decorating_function