@@ -14,6 +14,4 @@
 # limitations under the License.
 #
 
-from databricks.koalas.typedef.typehints import *
-
-__all__ = ["as_spark_type", "infer_pd_series_spark_type"]
+from databricks.koalas.typedef.typehints import *  # noqa: F401,F405
#
# Copyright (C) 2019 Databricks, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#

from databricks.koalas.typedef.typehints import *

__all__ = ["as_spark_type", "infer_pd_series_spark_type"]

Are these public APIs? If so, I'll revert them back. @HyukjinKwon