fixed bool param checks

src/Dataset.py

@@ -232,9 +232,9 @@ class Dataset:
         if type(colname) != str:
             logging.error("parameter `colname` is not a string")
             raise ValueError(f"{colname} is not a string")
-        if type(ascending) not in (None, bool):
+        if not (ascending is None or type(ascending) is bool):
             logging.error("parameter `ascending` is not a bool or None")
-            raise ValueError(f"{colname} is not a bool or None")
+            raise ValueError(f"{ascending} is not a bool or None")
 
         return self.dataframe[colname].sort_values(ascending=ascending)
 
@@ -270,9 +270,9 @@ class Dataset:
         if type(colname) != str:
             logging.error("parameter `colname` is not a string")
             raise ValueError(f"{colname} is not a string")
-        if type(ascending) not in (None, bool):
+        if not (ascending is None or type(ascending) is bool):
             logging.error("parameter `ascending` is not a bool or None")
-            raise ValueError(f"{colname} is not a bool or None")
+            raise ValueError(f"{ascending} is not a bool or None")
 
         grouped_size = self.dataframe.groupby(colname).size()
         return (