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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 finish_hanging(self):
 """Add tokens for hanging singature if any"""

        if self.groups.starting_signature:
            if self.groups.starting_group:
                self.add_tokens_for_group(with_pass=True)

            elif self.groups.starting_single:
                self.add_tokens_for_single(ignore=True)