def METHOD_NAME(self):
    Vcb = flavio.default_parameters.get_central('Vcb')
    # assert that total BR is in the ballpark of the experimental number
    self.assertAlmostEqual(
        flavio.sm_prediction('BR(B+->D*lnu)') / 5.41e-2 * 0.04**2 / Vcb**2, 1, delta=0.1)