def IncrementId(high_id_key):
 (unused_start, end) = datastore.AllocateIds(high_id_key, max=high_id_key.id())
 assert (end >= high_id_key.id())

def IncrementId ( high_id_key ) : ( unused_start , end ) = datastore . AllocateIds ( high_id_key , max = high_id_key . id ( ) ) assert ( end >= high_id_key . id ( ) )
increment unique id counter associated with high_id_key beyond high_id_key .