We are currently solving the following issue within our repository. Here is the issue text:
--- BEGIN ISSUE ---
Cannot import appengine
### How do you use Sentry?

Sentry Saas (sentry.io)

### Version

1.18.0

### Steps to Reproduce

Install the SDK within any project that is not pinning urllib3 < 2.0.0

### Expected Result

ability to import appengine

### Actual Result

Cannot import appengine as gaecontrib.
As per urllib 2.0.0 release: https://github.com/urllib3/urllib3/tree/2.0.0

Removed urllib3.contrib.appengine.AppEngineManager and support for Google App Engine Standard Environment (https://github.com/urllib3/urllib3/issues/2044).

--- END ISSUE ---

Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
--- BEGIN FILES ---
Path: `setup.py`
Content:
```
1 #!/usr/bin/env python
2 
3 """
4 Sentry-Python - Sentry SDK for Python
5 =====================================
6 
7 **Sentry-Python is an SDK for Sentry.** Check out `GitHub
8 <https://github.com/getsentry/sentry-python>`_ to find out more.
9 """
10 
11 import os
12 from setuptools import setup, find_packages
13 
14 here = os.path.abspath(os.path.dirname(__file__))
15 
16 
17 def get_file_text(file_name):
18     with open(os.path.join(here, file_name)) as in_file:
19         return in_file.read()
20 
21 
22 setup(
23     name="sentry-sdk",
24     version="1.21.1",
25     author="Sentry Team and Contributors",
26     author_email="hello@sentry.io",
27     url="https://github.com/getsentry/sentry-python",
28     project_urls={
29         "Documentation": "https://docs.sentry.io/platforms/python/",
30         "Changelog": "https://github.com/getsentry/sentry-python/blob/master/CHANGELOG.md",
31     },
32     description="Python client for Sentry (https://sentry.io)",
33     long_description=get_file_text("README.md"),
34     long_description_content_type="text/markdown",
35     packages=find_packages(exclude=("tests", "tests.*")),
36     # PEP 561
37     package_data={"sentry_sdk": ["py.typed"]},
38     zip_safe=False,
39     license="MIT",
40     install_requires=[
41         'urllib3>=1.25.7; python_version<="3.4"',
42         'urllib3>=1.26.9; python_version=="3.5"',
43         'urllib3>=1.26.11; python_version >="3.6"',
44         "certifi",
45     ],
46     extras_require={
47         "flask": ["flask>=0.11", "blinker>=1.1"],
48         "quart": ["quart>=0.16.1", "blinker>=1.1"],
49         "bottle": ["bottle>=0.12.13"],
50         "falcon": ["falcon>=1.4"],
51         "django": ["django>=1.8"],
52         "sanic": ["sanic>=0.8"],
53         "celery": ["celery>=3"],
54         "huey": ["huey>=2"],
55         "beam": ["apache-beam>=2.12"],
56         "arq": ["arq>=0.23"],
57         "rq": ["rq>=0.6"],
58         "aiohttp": ["aiohttp>=3.5"],
59         "tornado": ["tornado>=5"],
60         "sqlalchemy": ["sqlalchemy>=1.2"],
61         "pyspark": ["pyspark>=2.4.4"],
62         "pure_eval": ["pure_eval", "executing", "asttokens"],
63         "chalice": ["chalice>=1.16.0"],
64         "httpx": ["httpx>=0.16.0"],
65         "starlette": ["starlette>=0.19.1"],
66         "starlite": ["starlite>=1.48"],
67         "fastapi": ["fastapi>=0.79.0"],
68         "pymongo": ["pymongo>=3.1"],
69         "opentelemetry": ["opentelemetry-distro>=0.35b0"],
70         "grpcio": ["grpcio>=1.21.1"]
71     },
72     classifiers=[
73         "Development Status :: 5 - Production/Stable",
74         "Environment :: Web Environment",
75         "Intended Audience :: Developers",
76         "License :: OSI Approved :: BSD License",
77         "Operating System :: OS Independent",
78         "Programming Language :: Python",
79         "Programming Language :: Python :: 2",
80         "Programming Language :: Python :: 2.7",
81         "Programming Language :: Python :: 3",
82         "Programming Language :: Python :: 3.4",
83         "Programming Language :: Python :: 3.5",
84         "Programming Language :: Python :: 3.6",
85         "Programming Language :: Python :: 3.7",
86         "Programming Language :: Python :: 3.8",
87         "Programming Language :: Python :: 3.9",
88         "Programming Language :: Python :: 3.10",
89         "Topic :: Software Development :: Libraries :: Python Modules",
90     ],
91     options={"bdist_wheel": {"universal": "1"}},
92 )
93
```
--- 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/setup.py b/setup.py
--- a/setup.py
+++ b/setup.py
@@ -41,6 +41,7 @@
         'urllib3>=1.25.7; python_version<="3.4"',
         'urllib3>=1.26.9; python_version=="3.5"',
         'urllib3>=1.26.11; python_version >="3.6"',
+        'urllib3<2.0.0',
         "certifi",
     ],
     extras_require={

{"golden_diff": "diff --git a/setup.py b/setup.py\n--- a/setup.py\n+++ b/setup.py\n@@ -41,6 +41,7 @@\n         'urllib3>=1.25.7; python_version<=\"3.4\"',\n         'urllib3>=1.26.9; python_version==\"3.5\"',\n         'urllib3>=1.26.11; python_version >=\"3.6\"',\n+        'urllib3<2.0.0',\n         \"certifi\",\n     ],\n     extras_require={\n", "issue": "Cannot import appengine\n### How do you use Sentry?\n\nSentry Saas (sentry.io)\n\n### Version\n\n1.18.0\n\n### Steps to Reproduce\n\nInstall the SDK within any project that is not pinning urllib3 < 2.0.0\n\n### Expected Result\n\nability to import appengine\n\n### Actual Result\n\nCannot import appengine as gaecontrib.\r\nAs per urllib 2.0.0 release: https://github.com/urllib3/urllib3/tree/2.0.0\r\n\r\nRemoved urllib3.contrib.appengine.AppEngineManager and support for Google App Engine Standard Environment (https://github.com/urllib3/urllib3/issues/2044).\n", "before_files": [{"content": "#!/usr/bin/env python\n\n\"\"\"\nSentry-Python - Sentry SDK for Python\n=====================================\n\n**Sentry-Python is an SDK for Sentry.** Check out `GitHub\n<https://github.com/getsentry/sentry-python>`_ to find out more.\n\"\"\"\n\nimport os\nfrom setuptools import setup, find_packages\n\nhere = os.path.abspath(os.path.dirname(__file__))\n\n\ndef get_file_text(file_name):\n    with open(os.path.join(here, file_name)) as in_file:\n        return in_file.read()\n\n\nsetup(\n    name=\"sentry-sdk\",\n    version=\"1.21.1\",\n    author=\"Sentry Team and Contributors\",\n    author_email=\"hello@sentry.io\",\n    url=\"https://github.com/getsentry/sentry-python\",\n    project_urls={\n        \"Documentation\": \"https://docs.sentry.io/platforms/python/\",\n        \"Changelog\": \"https://github.com/getsentry/sentry-python/blob/master/CHANGELOG.md\",\n    },\n    description=\"Python client for Sentry (https://sentry.io)\",\n    long_description=get_file_text(\"README.md\"),\n    long_description_content_type=\"text/markdown\",\n    packages=find_packages(exclude=(\"tests\", \"tests.*\")),\n    # PEP 561\n    package_data={\"sentry_sdk\": [\"py.typed\"]},\n    zip_safe=False,\n    license=\"MIT\",\n    install_requires=[\n        'urllib3>=1.25.7; python_version<=\"3.4\"',\n        'urllib3>=1.26.9; python_version==\"3.5\"',\n        'urllib3>=1.26.11; python_version >=\"3.6\"',\n        \"certifi\",\n    ],\n    extras_require={\n        \"flask\": [\"flask>=0.11\", \"blinker>=1.1\"],\n        \"quart\": [\"quart>=0.16.1\", \"blinker>=1.1\"],\n        \"bottle\": [\"bottle>=0.12.13\"],\n        \"falcon\": [\"falcon>=1.4\"],\n        \"django\": [\"django>=1.8\"],\n        \"sanic\": [\"sanic>=0.8\"],\n        \"celery\": [\"celery>=3\"],\n        \"huey\": [\"huey>=2\"],\n        \"beam\": [\"apache-beam>=2.12\"],\n        \"arq\": [\"arq>=0.23\"],\n        \"rq\": [\"rq>=0.6\"],\n        \"aiohttp\": [\"aiohttp>=3.5\"],\n        \"tornado\": [\"tornado>=5\"],\n        \"sqlalchemy\": [\"sqlalchemy>=1.2\"],\n        \"pyspark\": [\"pyspark>=2.4.4\"],\n        \"pure_eval\": [\"pure_eval\", \"executing\", \"asttokens\"],\n        \"chalice\": [\"chalice>=1.16.0\"],\n        \"httpx\": [\"httpx>=0.16.0\"],\n        \"starlette\": [\"starlette>=0.19.1\"],\n        \"starlite\": [\"starlite>=1.48\"],\n        \"fastapi\": [\"fastapi>=0.79.0\"],\n        \"pymongo\": [\"pymongo>=3.1\"],\n        \"opentelemetry\": [\"opentelemetry-distro>=0.35b0\"],\n        \"grpcio\": [\"grpcio>=1.21.1\"]\n    },\n    classifiers=[\n        \"Development Status :: 5 - Production/Stable\",\n        \"Environment :: Web Environment\",\n        \"Intended Audience :: Developers\",\n        \"License :: OSI Approved :: BSD License\",\n        \"Operating System :: OS Independent\",\n        \"Programming Language :: Python\",\n        \"Programming Language :: Python :: 2\",\n        \"Programming Language :: Python :: 2.7\",\n        \"Programming Language :: Python :: 3\",\n        \"Programming Language :: Python :: 3.4\",\n        \"Programming Language :: Python :: 3.5\",\n        \"Programming Language :: Python :: 3.6\",\n        \"Programming Language :: Python :: 3.7\",\n        \"Programming Language :: Python :: 3.8\",\n        \"Programming Language :: Python :: 3.9\",\n        \"Programming Language :: Python :: 3.10\",\n        \"Topic :: Software Development :: Libraries :: Python Modules\",\n    ],\n    options={\"bdist_wheel\": {\"universal\": \"1\"}},\n)\n", "path": "setup.py"}], "after_files": [{"content": "#!/usr/bin/env python\n\n\"\"\"\nSentry-Python - Sentry SDK for Python\n=====================================\n\n**Sentry-Python is an SDK for Sentry.** Check out `GitHub\n<https://github.com/getsentry/sentry-python>`_ to find out more.\n\"\"\"\n\nimport os\nfrom setuptools import setup, find_packages\n\nhere = os.path.abspath(os.path.dirname(__file__))\n\n\ndef get_file_text(file_name):\n    with open(os.path.join(here, file_name)) as in_file:\n        return in_file.read()\n\n\nsetup(\n    name=\"sentry-sdk\",\n    version=\"1.21.1\",\n    author=\"Sentry Team and Contributors\",\n    author_email=\"hello@sentry.io\",\n    url=\"https://github.com/getsentry/sentry-python\",\n    project_urls={\n        \"Documentation\": \"https://docs.sentry.io/platforms/python/\",\n        \"Changelog\": \"https://github.com/getsentry/sentry-python/blob/master/CHANGELOG.md\",\n    },\n    description=\"Python client for Sentry (https://sentry.io)\",\n    long_description=get_file_text(\"README.md\"),\n    long_description_content_type=\"text/markdown\",\n    packages=find_packages(exclude=(\"tests\", \"tests.*\")),\n    # PEP 561\n    package_data={\"sentry_sdk\": [\"py.typed\"]},\n    zip_safe=False,\n    license=\"MIT\",\n    install_requires=[\n        'urllib3>=1.25.7; python_version<=\"3.4\"',\n        'urllib3>=1.26.9; python_version==\"3.5\"',\n        'urllib3>=1.26.11; python_version >=\"3.6\"',\n        'urllib3<2.0.0',\n        \"certifi\",\n    ],\n    extras_require={\n        \"flask\": [\"flask>=0.11\", \"blinker>=1.1\"],\n        \"quart\": [\"quart>=0.16.1\", \"blinker>=1.1\"],\n        \"bottle\": [\"bottle>=0.12.13\"],\n        \"falcon\": [\"falcon>=1.4\"],\n        \"django\": [\"django>=1.8\"],\n        \"sanic\": [\"sanic>=0.8\"],\n        \"celery\": [\"celery>=3\"],\n        \"huey\": [\"huey>=2\"],\n        \"beam\": [\"apache-beam>=2.12\"],\n        \"arq\": [\"arq>=0.23\"],\n        \"rq\": [\"rq>=0.6\"],\n        \"aiohttp\": [\"aiohttp>=3.5\"],\n        \"tornado\": [\"tornado>=5\"],\n        \"sqlalchemy\": [\"sqlalchemy>=1.2\"],\n        \"pyspark\": [\"pyspark>=2.4.4\"],\n        \"pure_eval\": [\"pure_eval\", \"executing\", \"asttokens\"],\n        \"chalice\": [\"chalice>=1.16.0\"],\n        \"httpx\": [\"httpx>=0.16.0\"],\n        \"starlette\": [\"starlette>=0.19.1\"],\n        \"starlite\": [\"starlite>=1.48\"],\n        \"fastapi\": [\"fastapi>=0.79.0\"],\n        \"pymongo\": [\"pymongo>=3.1\"],\n        \"opentelemetry\": [\"opentelemetry-distro>=0.35b0\"],\n        \"grpcio\": [\"grpcio>=1.21.1\"]\n    },\n    classifiers=[\n        \"Development Status :: 5 - Production/Stable\",\n        \"Environment :: Web Environment\",\n        \"Intended Audience :: Developers\",\n        \"License :: OSI Approved :: BSD License\",\n        \"Operating System :: OS Independent\",\n        \"Programming Language :: Python\",\n        \"Programming Language :: Python :: 2\",\n        \"Programming Language :: Python :: 2.7\",\n        \"Programming Language :: Python :: 3\",\n        \"Programming Language :: Python :: 3.4\",\n        \"Programming Language :: Python :: 3.5\",\n        \"Programming Language :: Python :: 3.6\",\n        \"Programming Language :: Python :: 3.7\",\n        \"Programming Language :: Python :: 3.8\",\n        \"Programming Language :: Python :: 3.9\",\n        \"Programming Language :: Python :: 3.10\",\n        \"Topic :: Software Development :: Libraries :: Python Modules\",\n    ],\n    options={\"bdist_wheel\": {\"universal\": \"1\"}},\n)\n", "path": "setup.py"}]}