chore: some lint fixes [(#3751)](GoogleCloudPlatform/python-docs-samples#3751)

* chore: some lint fixes

* longer timeout, more retries

* disable detect_test.py::test_async_detect_document

Author: Takashi Matsuo

packages/google-cloud-videointelligence/samples/analyze/beta_snippets_test.py

@@ -14,15 +14,16 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from six.moves.urllib.request import urlopen
 import os
 import uuid
 
 from google.cloud import storage
 import pytest
+from six.moves.urllib.request import urlopen
 
 import beta_snippets
 
+
 POSSIBLE_TEXTS = [
     "Google",
     "SUR",
@@ -129,6 +130,7 @@ def test_detect_text_gcs(capsys):
     out, _ = capsys.readouterr()
     assert 'Text' in out
 
+
 # Flaky InvalidArgument
 @pytest.mark.flaky(max_runs=3, min_passes=1)
 def test_track_objects(capsys):

packages/google-cloud-videointelligence/samples/analyze/video_detect_faces_beta.py

@@ -14,6 +14,7 @@
 
 # [START video_detect_faces_beta]
 import io
+
 from google.cloud import videointelligence_v1p3beta1 as videointelligence
 
 

packages/google-cloud-videointelligence/samples/analyze/video_detect_person_beta.py

@@ -14,6 +14,7 @@
 
 # [START video_detect_person_beta]
 import io
+
 from google.cloud import videointelligence_v1p3beta1 as videointelligence