chore: migrate to owl bot (#184)

Author: parthea

.github/.OwlBot.lock.yaml

@@ -0,0 +1,4 @@
+docker:
+  digest: sha256:c66ba3c8d7bc8566f47df841f98cd0097b28fff0b1864c86f5817f4c8c3e8600
+  image: gcr.io/repo-automation-bots/owlbot-python:latest  
+

.github/.OwlBot.yaml

@@ -0,0 +1,19 @@
+# Copyright 2021 Google LLC
+#
+# 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.
+
+docker:
+  image: gcr.io/repo-automation-bots/owlbot-python:latest
+
+begin-after-commit-hash: be22498ce258bf2d5fe12fd696d3ad9a2b6c430e
+

synth.py renamed to owlbot.py

@@ -114,8 +114,11 @@ def test_literal(self, literal_round_trip):
             # The base tests doesn't set up the literal properly, because
             # it doesn't pass its datatype to `literal`.
 
-            def literal(value):
+            def literal(value, type_=None):
                 assert value == self.data
+                if type_ is not None:
+                    assert type_ is self.datatype
+
                 import sqlalchemy.sql.sqltypes
 
                 return sqlalchemy.sql.elements.literal(value, self.datatype)