some apidocs

Signed-off-by: Oleksii Moskalenko <[email protected]>

sdk/python/feast/dqm/profilers/ge_profiler.py

@@ -141,6 +141,8 @@ def analyze_dataset(self, df: pd.DataFrame) -> Profile:
         return GEProfile(expectation_suite=self.user_defined_profiler(dataset))
 
     def to_proto(self):
+        # keep only the code and drop context for now
+        # ToDo (pyalex): include some context, but not all (dill tries to pull too much)
         udp = FunctionType(self.user_defined_profiler.__code__, {})
         return GEValidationProfilerProto(
             profiler=GEValidationProfilerProto.UserDefinedProfiler(

sdk/python/feast/saved_dataset.py

@@ -224,12 +224,30 @@ class ValidationReference:
     _dataset: Optional[SavedDataset] = None
 
     def __init__(self, name: str, dataset_name: str, profiler: Profiler):
+        """
+        Validation reference combines a reference dataset (currently only a saved dataset object can be used as
+        a reference) and a profiler function to generate a validation profile.
+        The validation profile can be cached in this object, and in this case
+        the saved dataset retrieval and the profiler call will happen only once.
+
+        Validation reference is being stored in the Feast registry and can be retrieved by its name, which
+        must be unique within one project.
+
+        Args:
+            name: unique name
+            dataset_name: name of a saved dataset
+            profiler: profiler function used to generate profile from a saved dataset
+        """
         self.name = name
         self.dataset_name = dataset_name
         self.profiler = profiler
 
     @classmethod
     def from_saved_dataset(cls, name: str, dataset: SavedDataset, profiler: Profiler):
+        """
+        Internal constructor to create validation reference object with actual saved dataset object
+        (regular constructor requires only its name).
+        """
         ref = ValidationReference(name, dataset.name, profiler)
         ref._dataset = dataset
         return ref