def track_items(params, step, sL, s, inputs):
    """
    grab the new items from inputs and append them to the state 'items'
    """
    items = s['items']
    #print(items)
    
    new_items = inputs['new_items']

    for k in new_items.keys():
        items[k] = new_items[k]
    
    key = 'items'
    value = items

    #print(items)
    return key, value