Fix is_categorical_dtype

Author: athimma2

ci/code_checks.sh

@@ -123,7 +123,6 @@ if [[ -z "$CHECK" || "$CHECK" == "docstrings" ]]; then
         -i "pandas.Timestamp.tzinfo GL08" \
         -i "pandas.Timestamp.year GL08" \
         -i "pandas.api.extensions.ExtensionArray.interpolate PR01,SA01" \
-        -i "pandas.api.types.is_categorical_dtype SA01" \
         -i "pandas.api.types.is_complex PR01,SA01" \
         -i "pandas.api.types.is_complex_dtype SA01" \
         -i "pandas.api.types.is_datetime64_dtype SA01" \

pandas/core/dtypes/common.py

@@ -514,6 +514,12 @@ def is_categorical_dtype(arr_or_dtype) -> bool:
     boolean
         Whether or not the array-like or dtype is of the Categorical dtype.
 
+    See Also
+    --------
+    api.types.is_list_like: Check if the object is list-like.
+    api.types.is_complex_dtype: Check whether the provided array or
+                                dtype is of a complex dtype.
+
     Examples
     --------
     >>> from pandas.api.types import is_categorical_dtype