def gallery(visits, option:2): H H II Produce summary statistics of gallery visits. Parameters: visits: list of visits (see also HTML instructions): Each visit is a tuple (room number (str), visitor number (str), time (str)) (all elements are integers in string format) Each visitor starts outside any room, and they leave all rooms in the end. The visits are not necessarily in order. option (int, optional}: determines what to return, see below Returns: a list containing tuples for each room (sorted in increasing number by room number (1, 2, 3, ...)): - if option I 0, (room number, number of unique visitors} - if option = 1, (room number, number of unique visitors, average visit time) - if option I 2, (room number, number of unique visitors, average visit time, highest total time spent in the room by a single visitor) - the average visit time is rounded to integer value. Example use: b>> ViSitS :[(I01f Ialf IZGI)' (IEJIif 'BI' I25I)' (Ill! Ill, I74I)' ('1', '1', '2')] >>> gallery(visits) [('3'.1.5. 5). ('131. 72. 72)] >>> gallery(visits, G) [('9', 1). ('1'.1)] >>> gallery(visits, 1} [('9'.1.5). V121. 72)] >>> gallery(visits, 1}[0] ('0'. 1. 5)