We are currently solving the following issue within our repository. Here is the issue text:
--- BEGIN ISSUE ---
google.auth.exceptions.TransportError is not being retried
Hi, 

Recently i faced an error can you please consider using this exception as a retry one also. Since i have faced this error in one of our production system

https://github.com/googleapis/python-storage/issues/414



--- END ISSUE ---

Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
--- BEGIN FILES ---
Path: `google/cloud/bigquery/retry.py`
Content:
```
1 # Copyright 2018 Google LLC
2 #
3 # Licensed under the Apache License, Version 2.0 (the "License");
4 # you may not use this file except in compliance with the License.
5 # You may obtain a copy of the License at
6 #
7 #     http://www.apache.org/licenses/LICENSE-2.0
8 #
9 # Unless required by applicable law or agreed to in writing, software
10 # distributed under the License is distributed on an "AS IS" BASIS,
11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 # See the License for the specific language governing permissions and
13 # limitations under the License.
14 
15 from google.api_core import exceptions
16 from google.api_core import retry
17 import requests.exceptions
18 
19 
20 _RETRYABLE_REASONS = frozenset(
21     ["rateLimitExceeded", "backendError", "internalError", "badGateway"]
22 )
23 
24 _UNSTRUCTURED_RETRYABLE_TYPES = (
25     ConnectionError,
26     exceptions.TooManyRequests,
27     exceptions.InternalServerError,
28     exceptions.BadGateway,
29     requests.exceptions.ConnectionError,
30 )
31 
32 
33 def _should_retry(exc):
34     """Predicate for determining when to retry.
35 
36     We retry if and only if the 'reason' is 'backendError'
37     or 'rateLimitExceeded'.
38     """
39     if not hasattr(exc, "errors") or len(exc.errors) == 0:
40         # Check for unstructured error returns, e.g. from GFE
41         return isinstance(exc, _UNSTRUCTURED_RETRYABLE_TYPES)
42 
43     reason = exc.errors[0]["reason"]
44     return reason in _RETRYABLE_REASONS
45 
46 
47 DEFAULT_RETRY = retry.Retry(predicate=_should_retry)
48 """The default retry object.
49 
50 Any method with a ``retry`` parameter will be retried automatically,
51 with reasonable defaults. To disable retry, pass ``retry=None``.
52 To modify the default retry behavior, call a ``with_XXX`` method
53 on ``DEFAULT_RETRY``. For example, to change the deadline to 30 seconds,
54 pass ``retry=bigquery.DEFAULT_RETRY.with_deadline(30)``.
55 """
56
```
--- END FILES ---

Please first localize the bug based on the issue statement, and then generate a patch according to the `git diff` format fenced by three backticks.

Here is an example:

```diff
diff --git a/examples/server_async.py b/examples/server_async.py
--- a/examples/server_async.py
+++ b/examples/server_async.py
@@ -313,4 +313,4 @@
 
 
 if __name__ == "__main__":
-    asyncio.run(run_async_server("."), debug=True)
+    asyncio.run(run_async_server(), debug=True)
diff --git a/examples/server_sync.py b/examples/server_sync.py
--- a/examples/server_sync.py
+++ b/examples/server_sync.py
@@ -313,5 +313,5 @@
 
 
 if __name__ == "__main__":
-    server = run_sync_server(".")
+    server = run_sync_server()
     server.shutdown()

```

diff --git a/google/cloud/bigquery/retry.py b/google/cloud/bigquery/retry.py
--- a/google/cloud/bigquery/retry.py
+++ b/google/cloud/bigquery/retry.py
@@ -14,6 +14,7 @@
 
 from google.api_core import exceptions
 from google.api_core import retry
+from google.auth import exceptions as auth_exceptions
 import requests.exceptions
 
 
@@ -27,6 +28,7 @@
     exceptions.InternalServerError,
     exceptions.BadGateway,
     requests.exceptions.ConnectionError,
+    auth_exceptions.TransportError,
 )

{"golden_diff": "diff --git a/google/cloud/bigquery/retry.py b/google/cloud/bigquery/retry.py\n--- a/google/cloud/bigquery/retry.py\n+++ b/google/cloud/bigquery/retry.py\n@@ -14,6 +14,7 @@\n \n from google.api_core import exceptions\n from google.api_core import retry\n+from google.auth import exceptions as auth_exceptions\n import requests.exceptions\n \n \n@@ -27,6 +28,7 @@\n     exceptions.InternalServerError,\n     exceptions.BadGateway,\n     requests.exceptions.ConnectionError,\n+    auth_exceptions.TransportError,\n )\n", "issue": "google.auth.exceptions.TransportError is not being retried\nHi, \r\n\r\nRecently i faced an error can you please consider using this exception as a retry one also. Since i have faced this error in one of our production system\r\n\r\nhttps://github.com/googleapis/python-storage/issues/414\r\n\r\n\n", "before_files": [{"content": "# Copyright 2018 Google LLC\n#\n# Licensed under the Apache License, Version 2.0 (the \"License\");\n# you may not use this file except in compliance with the License.\n# You may obtain a copy of the License at\n#\n#     http://www.apache.org/licenses/LICENSE-2.0\n#\n# Unless required by applicable law or agreed to in writing, software\n# distributed under the License is distributed on an \"AS IS\" BASIS,\n# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n# See the License for the specific language governing permissions and\n# limitations under the License.\n\nfrom google.api_core import exceptions\nfrom google.api_core import retry\nimport requests.exceptions\n\n\n_RETRYABLE_REASONS = frozenset(\n    [\"rateLimitExceeded\", \"backendError\", \"internalError\", \"badGateway\"]\n)\n\n_UNSTRUCTURED_RETRYABLE_TYPES = (\n    ConnectionError,\n    exceptions.TooManyRequests,\n    exceptions.InternalServerError,\n    exceptions.BadGateway,\n    requests.exceptions.ConnectionError,\n)\n\n\ndef _should_retry(exc):\n    \"\"\"Predicate for determining when to retry.\n\n    We retry if and only if the 'reason' is 'backendError'\n    or 'rateLimitExceeded'.\n    \"\"\"\n    if not hasattr(exc, \"errors\") or len(exc.errors) == 0:\n        # Check for unstructured error returns, e.g. from GFE\n        return isinstance(exc, _UNSTRUCTURED_RETRYABLE_TYPES)\n\n    reason = exc.errors[0][\"reason\"]\n    return reason in _RETRYABLE_REASONS\n\n\nDEFAULT_RETRY = retry.Retry(predicate=_should_retry)\n\"\"\"The default retry object.\n\nAny method with a ``retry`` parameter will be retried automatically,\nwith reasonable defaults. To disable retry, pass ``retry=None``.\nTo modify the default retry behavior, call a ``with_XXX`` method\non ``DEFAULT_RETRY``. For example, to change the deadline to 30 seconds,\npass ``retry=bigquery.DEFAULT_RETRY.with_deadline(30)``.\n\"\"\"\n", "path": "google/cloud/bigquery/retry.py"}], "after_files": [{"content": "# Copyright 2018 Google LLC\n#\n# Licensed under the Apache License, Version 2.0 (the \"License\");\n# you may not use this file except in compliance with the License.\n# You may obtain a copy of the License at\n#\n#     http://www.apache.org/licenses/LICENSE-2.0\n#\n# Unless required by applicable law or agreed to in writing, software\n# distributed under the License is distributed on an \"AS IS\" BASIS,\n# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n# See the License for the specific language governing permissions and\n# limitations under the License.\n\nfrom google.api_core import exceptions\nfrom google.api_core import retry\nfrom google.auth import exceptions as auth_exceptions\nimport requests.exceptions\n\n\n_RETRYABLE_REASONS = frozenset(\n    [\"rateLimitExceeded\", \"backendError\", \"internalError\", \"badGateway\"]\n)\n\n_UNSTRUCTURED_RETRYABLE_TYPES = (\n    ConnectionError,\n    exceptions.TooManyRequests,\n    exceptions.InternalServerError,\n    exceptions.BadGateway,\n    requests.exceptions.ConnectionError,\n    auth_exceptions.TransportError,\n)\n\n\ndef _should_retry(exc):\n    \"\"\"Predicate for determining when to retry.\n\n    We retry if and only if the 'reason' is 'backendError'\n    or 'rateLimitExceeded'.\n    \"\"\"\n    if not hasattr(exc, \"errors\") or len(exc.errors) == 0:\n        # Check for unstructured error returns, e.g. from GFE\n        return isinstance(exc, _UNSTRUCTURED_RETRYABLE_TYPES)\n\n    reason = exc.errors[0][\"reason\"]\n    return reason in _RETRYABLE_REASONS\n\n\nDEFAULT_RETRY = retry.Retry(predicate=_should_retry)\n\"\"\"The default retry object.\n\nAny method with a ``retry`` parameter will be retried automatically,\nwith reasonable defaults. To disable retry, pass ``retry=None``.\nTo modify the default retry behavior, call a ``with_XXX`` method\non ``DEFAULT_RETRY``. For example, to change the deadline to 30 seconds,\npass ``retry=bigquery.DEFAULT_RETRY.with_deadline(30)``.\n\"\"\"\n", "path": "google/cloud/bigquery/retry.py"}]}