def getAncestors(cls, t:Tree):
ancestors = []
t = t.getParent()
while t is not None:
ancestors.insert(0, t) # insert at start
t = t.getParent()
return ancestors
def getAncestors(cls, t: Tree):
ancestors = []
t = t.getParent()
while t is not None:
ancestors.insert(0, t) # insert at start
t = t.getParent()
return ancestors
