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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 note(self, info):
 """Record some info to the report. :param info: Dictionary of info to record. Note that previous info recorded under the same keys will not be overwritten. """

        if self.recording:
            if self.notes is None:
                raise ValueError("This report has already been submitted")
            self.notes.extend(self._to_notes(info))