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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 is_rectilinear(self):
 """True if the transform is rectilinear, i.e., whether a shape would remain axis-aligned, within rounding limits, after applying the transform. """

        a, b, c, d, e, f, g, h, i = self
        return (abs(a) < EPSILON and abs(e) < EPSILON) or (
            abs(d) < EPSILON and abs(b) < EPSILON
        )