fix unique

Author: athimma2

ci/code_checks.sh

@@ -176,7 +176,6 @@ if [[ -z "$CHECK" || "$CHECK" == "docstrings" ]]; then
         -i "pandas.Timestamp.value GL08" \
         -i "pandas.Timestamp.year GL08" \
         -i "pandas.api.extensions.ExtensionArray.interpolate PR01,SA01" \
-        -i "pandas.api.extensions.ExtensionArray.unique RT03,SA01" \
         -i "pandas.api.extensions.ExtensionArray.view SA01" \
         -i "pandas.api.interchange.from_dataframe RT03,SA01" \
         -i "pandas.api.types.is_bool PR01,SA01" \

pandas/core/arrays/base.py

@@ -1319,6 +1319,13 @@ def unique(self) -> Self:
         Returns
         -------
         pandas.api.extensions.ExtensionArray
+            With unique values from the input array.
+
+        See Also
+        --------
+        Index.unique: Return unique values in the index.
+        Series.unique: Return unique values of Series object.
+        unique: Return unique values based on a hash table.
 
         Examples
         --------