How to use the sopel.tools.iteritems function in sopel

def check_callbacks(bot, trigger, url, run=True):
    """
    Check the given URL against the callbacks list. If it matches, and ``run``
    is given as ``True``, run the callback function, otherwise pass. Returns
    ``True`` if the url matched anything in the callbacks list.
    """
    # Check if it matches the exclusion list first
    matched = any(regex.search(url) for regex in bot.memory['url_exclude'])
    # Then, check if there's anything in the callback list
    for regex, function in tools.iteritems(bot.memory['url_callbacks']):
        match = regex.search(url)
        if match:
            if run:
                function(bot, trigger, match)
            matched = True
    return matched