Fix mypy errors for pandas\tests\series\test_operators.py#29826

Merged

WillAyd merged 2 commits intopandas-dev:masterfrom

SaturnFromTitan:mypy-pandas-tests-series-test_operators

Nov 27, 2019

Commits on Nov 26, 2019

added type hints for div and rdiv methods of Series which are only added at runtime
SaturnFromTitan
committed

Commits on Nov 27, 2019

added type annotation of second argument
SaturnFromTitan
committed