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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 display(self, previous=0, include_data=False):
 """Display the node."""

        no_data = " (No Data)" if self.data is None else ""
        return (
            (" +" * previous) + str(self.name) + no_data + '\n' +
            ''.join([child.display(previous + 1) for child in self.children]))