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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 addClassBreak(self, classMinValue, classMaxValue, label, description, symbol):
 """ adds a classification break value to the renderer """

        if self._classBreakInfos is None:
            self._classBreakInfos = []
        self._classBreakInfos.append(
            {
                "classMinValue" : classMinValue,
                "classMaxValue" : classMaxValue,
                "label" : label,
                "description" : description,
                "symbol" :  symbol
            }
        )