Fix docs for nanops.py

Author: ShaharNaveh

ci/code_checks.sh

@@ -166,6 +166,10 @@ if [[ -z "$CHECK" || "$CHECK" == "doctests" ]]; then
     pytest -q --doctest-modules pandas/core/generic.py
     RET=$(($RET + $?)) ; echo $MSG "DONE"
 
+    MSG='Doctests nanops.py' ; echo $MSG
+    pytest -q --doctest-modules pandas/core/nanops.py
+    RET=$(($RET + $?)) ; echo $MSG "DONE"
+
     MSG='Doctests series.py' ; echo $MSG
     pytest -q --doctest-modules pandas/core/series.py
     RET=$(($RET + $?)) ; echo $MSG "DONE"

pandas/core/nanops.py

@@ -1056,7 +1056,7 @@ def nanargmax(
            [ 6.,  7., nan],
            [ 9., 10., nan]])
     >>> nanops.nanargmax(arr, axis=1)
-    array([2, 2, 1, 1], dtype=int64)
+    array([2, 2, 1, 1])
     """
     values, mask, _, _, _ = _get_values(values, True, fill_value_typ="-inf", mask=mask)
     # error: Need type annotation for 'result'
@@ -1102,7 +1102,7 @@ def nanargmin(
            [nan,  7.,  8.],
            [nan, 10., 11.]])
     >>> nanops.nanargmin(arr, axis=1)
-    array([0, 0, 1, 1], dtype=int64)
+    array([0, 0, 1, 1])
     """
     values, mask, _, _, _ = _get_values(values, True, fill_value_typ="+inf", mask=mask)
     # error: Need type annotation for 'result'