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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 missed_lines(self, filename):
 """ Return a list of extrapolated uncovered line numbers for the file `filename` according to `Cobertura.line_statuses`. """

        statuses = self.line_statuses(filename)
        statuses = extrapolate_coverage(statuses)
        return [lno for lno, status in statuses if status is False]