Dev/spark backend new comparator

hypex/comparators/__init__.py

@@ -1,20 +1,31 @@
-from .abstract import Comparator, StatHypothesisTesting
+from .abstract import (
+    BaseComparator,
+    Comparator,
+    GroupsComparator,
+    StatHypothesisTesting,
+    StatsComparator,
+)
 from .comparators import PSI, GroupDifference, GroupSizes
 from .distances import MahalanobisDistance
 from .hypothesis_testing import Chi2Test, KSTest, TTest, UTest
 from .power_testing import MDEBySize, PowerTesting
+from .stats_hypothesis_testing import AggTTest
 
 __all__ = [
-    "PSI",
+    "AggTTest",
+    "BaseComparator",
     "Chi2Test",
     "Comparator",
     "GroupDifference",
     "GroupSizes",
+    "GroupsComparator",
     "KSTest",
     "MDEBySize",
     "MahalanobisDistance",
     "PowerTesting",
+    "PSI",
     "StatHypothesisTesting",
+    "StatsComparator",
     "TTest",
     "UTest",
 ]