We are currently solving the following issue within our repository. Here is the issue text:
--- BEGIN ISSUE ---
Move system tests into a separate Kokoro build
At the moment, we run the system tests [at the end of *every* Kokoro build](https://github.com/googleapis/google-auth-library-python/blob/da8bb13c1349e771ffc2e125256030495c53d956/.kokoro/build.sh#L57-L63).  Not only should we *not* be running them during e.g. the `docs-presubmit` build, we should also run them separately from the `unit` / `cover` / `lint` sessions, so that we parallelize the long-running systests.

--- END ISSUE ---

Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
--- BEGIN FILES ---
Path: `owlbot.py`
Content:
```
1 import synthtool as s
2 from synthtool import gcp
3 
4 common = gcp.CommonTemplates()
5 
6 # ----------------------------------------------------------------------------
7 # Add templated files
8 # ----------------------------------------------------------------------------
9 templated_files = common.py_library(unit_cov_level=100, cov_level=100)
10 
11 
12 s.move(
13     templated_files / ".kokoro",
14     excludes=[
15         "continuous/common.cfg",
16         "docs/common.cfg",
17         "presubmit/common.cfg",
18         "build.sh",
19     ],
20 )  # just move kokoro configs
21 
22 
23 assert 1 == s.replace(
24     ".kokoro/docs/docs-presubmit.cfg",
25     'value: "docs docfx"',
26     'value: "docs"',
27 )
28 
29 assert 1 == s.replace(
30     ".kokoro/docker/docs/Dockerfile",
31     """\
32 CMD \["python3\.8"\]""",
33     """\
34 # Install gcloud SDK
35 RUN echo "deb [signed-by=/usr/share/keyrings/cloud.google.gpg] http://packages.cloud.google.com/apt cloud-sdk main" | \\
36     tee -a /etc/apt/sources.list.d/google-cloud-sdk.list \\
37   && curl https://packages.cloud.google.com/apt/doc/apt-key.gpg | \\
38     apt-key --keyring /usr/share/keyrings/cloud.google.gpg  add - \\
39   && apt-get update -y \\
40   && apt-get install python2 google-cloud-sdk -y
41 
42 CMD ["python3.8"]""",
43 )
44 
45 s.shell.run(["nox", "-s", "blacken"], hide_output=False)
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()

```

diff --git a/owlbot.py b/owlbot.py
--- a/owlbot.py
+++ b/owlbot.py
@@ -13,7 +13,6 @@
     templated_files / ".kokoro",
     excludes=[
         "continuous/common.cfg",
-        "docs/common.cfg",
         "presubmit/common.cfg",
         "build.sh",
     ],
@@ -26,20 +25,4 @@
     'value: "docs"',
 )
 
-assert 1 == s.replace(
-    ".kokoro/docker/docs/Dockerfile",
-    """\
-CMD \["python3\.8"\]""",
-    """\
-# Install gcloud SDK
-RUN echo "deb [signed-by=/usr/share/keyrings/cloud.google.gpg] http://packages.cloud.google.com/apt cloud-sdk main" | \\
-    tee -a /etc/apt/sources.list.d/google-cloud-sdk.list \\
-  && curl https://packages.cloud.google.com/apt/doc/apt-key.gpg | \\
-    apt-key --keyring /usr/share/keyrings/cloud.google.gpg  add - \\
-  && apt-get update -y \\
-  && apt-get install python2 google-cloud-sdk -y
-
-CMD ["python3.8"]""",
-)
-
 s.shell.run(["nox", "-s", "blacken"], hide_output=False)

{"golden_diff": "diff --git a/owlbot.py b/owlbot.py\n--- a/owlbot.py\n+++ b/owlbot.py\n@@ -13,7 +13,6 @@\n     templated_files / \".kokoro\",\n     excludes=[\n         \"continuous/common.cfg\",\n-        \"docs/common.cfg\",\n         \"presubmit/common.cfg\",\n         \"build.sh\",\n     ],\n@@ -26,20 +25,4 @@\n     'value: \"docs\"',\n )\n \n-assert 1 == s.replace(\n-    \".kokoro/docker/docs/Dockerfile\",\n-    \"\"\"\\\n-CMD \\[\"python3\\.8\"\\]\"\"\",\n-    \"\"\"\\\n-# Install gcloud SDK\n-RUN echo \"deb [signed-by=/usr/share/keyrings/cloud.google.gpg] http://packages.cloud.google.com/apt cloud-sdk main\" | \\\\\n-    tee -a /etc/apt/sources.list.d/google-cloud-sdk.list \\\\\n-  && curl https://packages.cloud.google.com/apt/doc/apt-key.gpg | \\\\\n-    apt-key --keyring /usr/share/keyrings/cloud.google.gpg  add - \\\\\n-  && apt-get update -y \\\\\n-  && apt-get install python2 google-cloud-sdk -y\n-\n-CMD [\"python3.8\"]\"\"\",\n-)\n-\n s.shell.run([\"nox\", \"-s\", \"blacken\"], hide_output=False)\n", "issue": "Move system tests into a separate Kokoro build\nAt the moment, we run the system tests [at the end of *every* Kokoro build](https://github.com/googleapis/google-auth-library-python/blob/da8bb13c1349e771ffc2e125256030495c53d956/.kokoro/build.sh#L57-L63).  Not only should we *not* be running them during e.g. the `docs-presubmit` build, we should also run them separately from the `unit` / `cover` / `lint` sessions, so that we parallelize the long-running systests.\n", "before_files": [{"content": "import synthtool as s\nfrom synthtool import gcp\n\ncommon = gcp.CommonTemplates()\n\n# ----------------------------------------------------------------------------\n# Add templated files\n# ----------------------------------------------------------------------------\ntemplated_files = common.py_library(unit_cov_level=100, cov_level=100)\n\n\ns.move(\n    templated_files / \".kokoro\",\n    excludes=[\n        \"continuous/common.cfg\",\n        \"docs/common.cfg\",\n        \"presubmit/common.cfg\",\n        \"build.sh\",\n    ],\n)  # just move kokoro configs\n\n\nassert 1 == s.replace(\n    \".kokoro/docs/docs-presubmit.cfg\",\n    'value: \"docs docfx\"',\n    'value: \"docs\"',\n)\n\nassert 1 == s.replace(\n    \".kokoro/docker/docs/Dockerfile\",\n    \"\"\"\\\nCMD \\[\"python3\\.8\"\\]\"\"\",\n    \"\"\"\\\n# Install gcloud SDK\nRUN echo \"deb [signed-by=/usr/share/keyrings/cloud.google.gpg] http://packages.cloud.google.com/apt cloud-sdk main\" | \\\\\n    tee -a /etc/apt/sources.list.d/google-cloud-sdk.list \\\\\n  && curl https://packages.cloud.google.com/apt/doc/apt-key.gpg | \\\\\n    apt-key --keyring /usr/share/keyrings/cloud.google.gpg  add - \\\\\n  && apt-get update -y \\\\\n  && apt-get install python2 google-cloud-sdk -y\n\nCMD [\"python3.8\"]\"\"\",\n)\n\ns.shell.run([\"nox\", \"-s\", \"blacken\"], hide_output=False)\n", "path": "owlbot.py"}], "after_files": [{"content": "import synthtool as s\nfrom synthtool import gcp\n\ncommon = gcp.CommonTemplates()\n\n# ----------------------------------------------------------------------------\n# Add templated files\n# ----------------------------------------------------------------------------\ntemplated_files = common.py_library(unit_cov_level=100, cov_level=100)\n\n\ns.move(\n    templated_files / \".kokoro\",\n    excludes=[\n        \"continuous/common.cfg\",\n        \"presubmit/common.cfg\",\n        \"build.sh\",\n    ],\n)  # just move kokoro configs\n\n\nassert 1 == s.replace(\n    \".kokoro/docs/docs-presubmit.cfg\",\n    'value: \"docs docfx\"',\n    'value: \"docs\"',\n)\n\ns.shell.run([\"nox\", \"-s\", \"blacken\"], hide_output=False)\n", "path": "owlbot.py"}]}