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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def AddLeafNodes(self, prefix, node):
 """Adds leaf nodes begin with prefix to this tree."""

    if not node:
      self.AddPath(prefix)
    for name in node:
      child_path = prefix + '.' + name
      self.AddLeafNodes(child_path, node[name])