Add conftest

Author: smokestacklightnin

tensorflow_model_analysis/conftest.py

@@ -0,0 +1,8 @@
+import pytest
+from tensorflow.compat.v1 import disable_v2_behavior, enable_v2_behavior
+
+@pytest.fixture(scope="class")
+def v2_behavior():
+    enable_v2_behavior()
+    yield
+    disable_v2_behavior()