prompt: We are currently solving the following issue within our repository. Here is the issue text:
  --- BEGIN ISSUE ---
  chore: update system tests and samples to use and `@google.com` email address
  Re: https://github.com/googleapis/python-bigquery/pull/935#issuecomment-911791623
  
  It may be some time before we can reconfigure our test project(s) to allow permissions for non-google.com folks.
  
  I propose we use `cloud-developer-relations@google.com`, which is intended for interacting with the public and most Googlers who support this client are members of but don't have email enabled, so it should be less of a spam risk.
  
  
  --- END ISSUE ---
  
  Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
  --- BEGIN FILES ---
  Path: `samples/update_dataset_access.py`
  Content:
  ```
  1 # Copyright 2019 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 #     https://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 
  16 def update_dataset_access(dataset_id):
  17 
  18     # [START bigquery_update_dataset_access]
  19     from google.cloud import bigquery
  20 
  21     # Construct a BigQuery client object.
  22     client = bigquery.Client()
  23 
  24     # TODO(developer): Set dataset_id to the ID of the dataset to fetch.
  25     # dataset_id = 'your-project.your_dataset'
  26 
  27     dataset = client.get_dataset(dataset_id)  # Make an API request.
  28 
  29     entry = bigquery.AccessEntry(
  30         role="READER",
  31         entity_type="userByEmail",
  32         entity_id="sample.bigquery.dev@gmail.com",
  33     )
  34 
  35     entries = list(dataset.access_entries)
  36     entries.append(entry)
  37     dataset.access_entries = entries
  38 
  39     dataset = client.update_dataset(dataset, ["access_entries"])  # Make an API request.
  40 
  41     full_dataset_id = "{}.{}".format(dataset.project, dataset.dataset_id)
  42     print(
  43         "Updated dataset '{}' with modified user permissions.".format(full_dataset_id)
  44     )
  45     # [END bigquery_update_dataset_access]
  46
  ```
  --- 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()
  
  ```
  
golden_diff: diff --git a/samples/update_dataset_access.py b/samples/update_dataset_access.py
  --- a/samples/update_dataset_access.py
  +++ b/samples/update_dataset_access.py
  @@ -28,8 +28,8 @@
   
       entry = bigquery.AccessEntry(
           role="READER",
  -        entity_type="userByEmail",
  -        entity_id="sample.bigquery.dev@gmail.com",
  +        entity_type="groupByEmail",
  +        entity_id="cloud-developer-relations@google.com",
       )
   
       entries = list(dataset.access_entries)
  
verification_info: {"golden_diff": "diff --git a/samples/update_dataset_access.py b/samples/update_dataset_access.py\n--- a/samples/update_dataset_access.py\n+++ b/samples/update_dataset_access.py\n@@ -28,8 +28,8 @@\n \n     entry = bigquery.AccessEntry(\n         role=\"READER\",\n-        entity_type=\"userByEmail\",\n-        entity_id=\"sample.bigquery.dev@gmail.com\",\n+        entity_type=\"groupByEmail\",\n+        entity_id=\"cloud-developer-relations@google.com\",\n     )\n \n     entries = list(dataset.access_entries)\n", "issue": "chore: update system tests and samples to use and `@google.com` email address\nRe: https://github.com/googleapis/python-bigquery/pull/935#issuecomment-911791623\r\n\r\nIt may be some time before we can reconfigure our test project(s) to allow permissions for non-google.com folks.\r\n\r\nI propose we use `cloud-developer-relations@google.com`, which is intended for interacting with the public and most Googlers who support this client are members of but don't have email enabled, so it should be less of a spam risk.\r\n\n", "before_files": [{"content": "# Copyright 2019 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#     https://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\n\ndef update_dataset_access(dataset_id):\n\n    # [START bigquery_update_dataset_access]\n    from google.cloud import bigquery\n\n    # Construct a BigQuery client object.\n    client = bigquery.Client()\n\n    # TODO(developer): Set dataset_id to the ID of the dataset to fetch.\n    # dataset_id = 'your-project.your_dataset'\n\n    dataset = client.get_dataset(dataset_id)  # Make an API request.\n\n    entry = bigquery.AccessEntry(\n        role=\"READER\",\n        entity_type=\"userByEmail\",\n        entity_id=\"sample.bigquery.dev@gmail.com\",\n    )\n\n    entries = list(dataset.access_entries)\n    entries.append(entry)\n    dataset.access_entries = entries\n\n    dataset = client.update_dataset(dataset, [\"access_entries\"])  # Make an API request.\n\n    full_dataset_id = \"{}.{}\".format(dataset.project, dataset.dataset_id)\n    print(\n        \"Updated dataset '{}' with modified user permissions.\".format(full_dataset_id)\n    )\n    # [END bigquery_update_dataset_access]\n", "path": "samples/update_dataset_access.py"}], "after_files": [{"content": "# Copyright 2019 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#     https://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\n\ndef update_dataset_access(dataset_id):\n\n    # [START bigquery_update_dataset_access]\n    from google.cloud import bigquery\n\n    # Construct a BigQuery client object.\n    client = bigquery.Client()\n\n    # TODO(developer): Set dataset_id to the ID of the dataset to fetch.\n    # dataset_id = 'your-project.your_dataset'\n\n    dataset = client.get_dataset(dataset_id)  # Make an API request.\n\n    entry = bigquery.AccessEntry(\n        role=\"READER\",\n        entity_type=\"groupByEmail\",\n        entity_id=\"cloud-developer-relations@google.com\",\n    )\n\n    entries = list(dataset.access_entries)\n    entries.append(entry)\n    dataset.access_entries = entries\n\n    dataset = client.update_dataset(dataset, [\"access_entries\"])  # Make an API request.\n\n    full_dataset_id = \"{}.{}\".format(dataset.project, dataset.dataset_id)\n    print(\n        \"Updated dataset '{}' with modified user permissions.\".format(full_dataset_id)\n    )\n    # [END bigquery_update_dataset_access]\n", "path": "samples/update_dataset_access.py"}]}