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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 nextComment(self, text, start=0):
 """Return the next comment found in text starting at start. """


        m = min([self.lineComment(text, start),
                 self.blockComment(text, start),
                 self._emptylineregex.search(text, start)],
                key=lambda m: m.start(0) if m else len(text))
        return m