_warn_missing_levels docstring updated

Boluwatife28 · Boluwatife28 · commit abe7d63487fd · 2025-03-04T12:00:07.000Z
diff --git a/tubular/nominal.py b/tubular/nominal.py
@@ -1297,6 +1297,10 @@ def _warn_missing_levels(
             The column name being checked for missing user-specified levels.
         missing_levels: dict[str, list[str]]
             Dictionary containing missing user-specified levels for each column.
+        Returns
+        -------
+        missing_levels : dict[str, list[str]]
+            Dictionary updated to reflect new missing levels for column c
 
         """
         # print warning for missing levels
