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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 path(self):
 """Node's relative path from the root node"""


        if self.parent:
            try:
                parent_path = self.parent.path.encode()
            except AttributeError:
                parent_path = self.parent.path
            return os.path.join(parent_path, self.name)
        return b"/"