def METHOD_NAME(self,path):
    # find the proper node in the tree and remove it
    idx = path.find("/")
    if idx > 0:
        lpath = path[:idx]
        rpath = path[idx+1:]
        tree = self._value[lpath]
        tree.METHOD_NAME(rpath)
    elif path in list(self._value.keys()):
        del self._value[path]