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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 mangled_name(self):
 """Return the mangled name for the entity referenced by this cursor."""

        if not hasattr(self, '_mangled_name'):
            self._mangled_name = conf.lib.clang_Cursor_getMangling(self)

        return self._mangled_name