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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 approx_equal(self, center, width, height, angle, tol=1e-6):
        "Method mainly useful for testing"
        return abs(self.cx - center[0]) < tol and abs(self.cy - center[1]) < tol and abs(self.width - width) < tol and \
               abs(self.height - height) < tol and abs(self.angle - angle) < tol