def get_lru_cache(max_size=5):
    """
    Args:
        max_size (int):

    References:
        https://github.com/amitdev/lru-dict

    CommandLine:
        python -m utool.util_cache --test-get_lru_cache

    Example:
        >>> # DISABLE_DOCTEST
        >>> # UNSTABLE_DOCTEST
        >>> from utool.util_cache import *  # NOQA
        >>> import utool as ut  # NOQA
        >>> max_size = 5
        >>> # execute function
        >>> cache_obj = get_lru_cache(max_size)
        >>> cache_obj[1] = 1
        >>> cache_obj[2] = 2
        >>> cache_obj[3] = 3
        >>> cache_obj[4] = 4
        >>> cache_obj[5] = 5
        >>> cache_obj[6] = 6
        >>> # verify results
        >>> result = ut.repr2(dict(cache_obj), nl=False)
        >>> print(result)
        {2: 2, 3: 3, 4: 4, 5: 5, 6: 6}
    """
    USE_C_LRU = False
    if USE_C_LRU:
        import lru
        cache_obj = lru.LRU(max_size)
    else:
        cache_obj = LRUDict(max_size)
    return cache_obj