DOC: Enforce Numpy Docstring Validation for pandas.Index.get_indexer_non_unique (#58508)

* DOC: remove PR07,SA01 in pandas.Index.get_indexer_non_unique

* DOC: remove PR07,SA01 in pandas.Index.get_indexer_non_unique

Author: tuhinsharma121

ci/code_checks.sh

@@ -88,7 +88,6 @@ if [[ -z "$CHECK" || "$CHECK" == "docstrings" ]]; then
         -i "pandas.Grouper PR02" \
         -i "pandas.Index PR07" \
         -i "pandas.Index.get_indexer_for PR01,SA01" \
-        -i "pandas.Index.get_indexer_non_unique PR07,SA01" \
         -i "pandas.Index.get_loc PR07,RT03,SA01" \
         -i "pandas.Index.join PR07,RT03,SA01" \
         -i "pandas.Index.names GL08" \

pandas/core/indexes/base.py

@@ -5850,6 +5850,7 @@ def _should_fallback_to_positional(self) -> bool:
         Parameters
         ----------
         target : %(target_klass)s
+            An iterable containing the values to be used for computing indexer.
 
         Returns
         -------
@@ -5861,6 +5862,12 @@ def _should_fallback_to_positional(self) -> bool:
             An indexer into the target of the values not found.
             These correspond to the -1 in the indexer array.
 
+        See Also
+        --------
+        Index.get_indexer : Computes indexer and mask for new index given
+            the current index.
+        Index.get_indexer_for : Returns an indexer even when non-unique.
+
         Examples
         --------
         >>> index = pd.Index(['c', 'b', 'a', 'b', 'b'])