def __init__(self, val={}):
CommentedMap.__init__(self, val)
if 'ends' in self.keys():
self['ends'] = named_list(self['ends'])
else:
self['tiles'] = named_list()
if 'tiles' in self.keys():
self['tiles'] = named_list(self['tiles'])
else:
self['tiles'] = named_list()
def __init__(self):
CommentedMap.__init__(self)
