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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_doc(self):
 """Get the proposed object's docstring. Returns None if it can not be get. """

        if not self.pyname:
            return None
        pyobject = self.pyname.get_object()
        if not hasattr(pyobject, 'get_doc'):
            return None
        return self.pyname.get_object().get_doc()