20495: Updates docstring for methods that modify cases (#271)

Co-authored-by: howsohazard <[email protected]>

howso/client/base.py

@@ -884,6 +884,9 @@ def edit_cases(
         """
         Edit feature values for the specified cases.
 
+        Updates the accumulated data mass for the model proportional to the
+        number of cases and features modified.
+
         Parameters
         ----------
         trainee_id : str
@@ -4328,6 +4331,9 @@ def add_feature(
         """
         Adds a feature to a trainee.
 
+        Updates the accumulated data mass for the model proportional to the
+        number of cases modified.
+
         Parameters
         ----------
         trainee_id : str
@@ -4420,6 +4426,9 @@ def remove_feature(
         """
         Removes a feature from a Trainee.
 
+        Updates the accumulated data mass for the model proportional to the
+        number of cases modified.
+
         Parameters
         ----------
         trainee_id : str

howso/engine/trainee.py

@@ -1974,6 +1974,9 @@ def edit_cases(
         """
         Edit feature values for the specified cases.
 
+        Updates the accumulated data mass for the model proportional to the
+        number of cases and features modified.
+
         Parameters
         ----------
         feature_values : DataFrame or 2-dimensional list of object
@@ -2313,6 +2316,9 @@ def add_feature(
         """
         Add a feature to the model.
 
+        Updates the accumulated data mass for the model proportional to the
+        number of cases modified.
+
         Parameters
         ----------
         feature : str
@@ -2388,6 +2394,9 @@ def remove_feature(
         """
         Remove a feature from the trainee.
 
+        Updates the accumulated data mass for the model proportional to the
+        number of cases modified.
+
         Parameters
         ----------
         feature : str