Fix test

test/test_kl.py

@@ -133,8 +133,7 @@ def test_ParametricVI(mirror_samples, fc):
     assert_allclose(true_val.val, kl.value, rtol=0.1)
 
     samples = model.KL.samples()
-    mini = ift.SteepestDescent(ift.GradientNormController(iteration_limit=3))
-    model.minimize(mini)
+    model.minimize(ift.ADVIOptimizer(ift.GradientNormController(iteration_limit=3)))
     samples1 = model.KL.samples()
     for aa, bb in zip(samples, samples1):
         ift.extra.assert_allclose(aa, bb)