util/map.sh =========== Map collection. .. py:function:: Map Map collection. .. py:function:: Map_get Get (value, 0) for the key. Return (null, 1) if key is not available. .. py:function:: Map_inc Increment value for the given key. .. py:function:: Map_keys Return list of keys in the same order as in the map. .. py:function:: Map_len Size of the map. .. py:function:: Map_put Add key, value pair into the map.