def test_merge_pool_kwargs_none(self) -> None:
        """Assert false-y values to _merge_pool_kwargs result in defaults"""
        p = PoolManager(retries=100)
        merged = p._merge_pool_kwargs({})
        assert p.connection_pool_kw == merged
        merged = p._merge_pool_kwargs(None)
        assert p.connection_pool_kw == merged
Assert false-y values to _merge_pool_kwargs result in defaults
test/test_poolmanager.py