Merge pull request #2241 from Trusted-AI/development_issue_2234

Remove circular dependency in art.estimators.certification

art/estimators/certification/__init__.py

@@ -2,12 +2,26 @@
 This module contains certified classifiers.
 """
 import importlib
-from art.estimators.certification import randomized_smoothing
-from art.estimators.certification import derandomized_smoothing
+from art.estimators.certification.randomized_smoothing.randomized_smoothing import RandomizedSmoothingMixin
+from art.estimators.certification.randomized_smoothing.numpy import NumpyRandomizedSmoothing
+from art.estimators.certification.randomized_smoothing.tensorflow import TensorFlowV2RandomizedSmoothing
+from art.estimators.certification.randomized_smoothing.pytorch import PyTorchRandomizedSmoothing
+from art.estimators.certification.derandomized_smoothing.derandomized_smoothing import DeRandomizedSmoothingMixin
+from art.estimators.certification.derandomized_smoothing.pytorch import PyTorchDeRandomizedSmoothing
+from art.estimators.certification.derandomized_smoothing.tensorflow import TensorFlowV2DeRandomizedSmoothing
 
 if importlib.util.find_spec("torch") is not None:
-    from art.estimators.certification import deep_z
-    from art.estimators.certification import interval
+    from art.estimators.certification.deep_z.deep_z import ZonoDenseLayer
+    from art.estimators.certification.deep_z.deep_z import ZonoBounds
+    from art.estimators.certification.deep_z.deep_z import ZonoConv
+    from art.estimators.certification.deep_z.deep_z import ZonoReLU
+    from art.estimators.certification.deep_z.pytorch import PytorchDeepZ
+    from art.estimators.certification.interval.interval import PyTorchIntervalDense
+    from art.estimators.certification.interval.interval import PyTorchIntervalConv2D
+    from art.estimators.certification.interval.interval import PyTorchIntervalReLU
+    from art.estimators.certification.interval.interval import PyTorchIntervalFlatten
+    from art.estimators.certification.interval.interval import PyTorchIntervalBounds
+    from art.estimators.certification.interval.pytorch import PyTorchIBPClassifier
 else:
     import warnings