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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 are_in_interval(s, l, r, border = 'included'):
 """ Checks whether all number in the sequence s lie inside the interval formed by l and r. """

        return numpy.all([IntensityRangeStandardization.is_in_interval(x, l, r, border) for x in s])