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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 get_help_topics(self) -> List[str]: """ Returns a list of help topics """

        return [name[len(HELP_FUNC_PREFIX):] for name in self.get_names()
                if name.startswith(HELP_FUNC_PREFIX) and callable(getattr(self, name))]