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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 _serie_format(self, serie, value):
 """Format an independent value for the serie"""


        kwargs = {'chart': self, 'serie': serie, 'index': None}
        formatter = (serie.formatter or self.formatter or self._value_format)
        kwargs = filter_kwargs(formatter, kwargs)
        return formatter(value, **kwargs)