diff --git a/.github/.OwlBot.lock.yaml b/.github/.OwlBot.lock.yaml
index e4e943e..5d9542b 100644
--- a/.github/.OwlBot.lock.yaml
+++ b/.github/.OwlBot.lock.yaml
@@ -13,5 +13,5 @@
 # limitations under the License.
 docker:
   image: gcr.io/cloud-devrel-public-resources/owlbot-python:latest
-  digest: sha256:98f3afd11308259de6e828e37376d18867fd321aba07826e29e4f8d9cab56bad
-# created: 2024-02-27T15:56:18.442440378Z
+  digest: sha256:3741fd1f5f5150378563c76afa06bcc12777b5fe54c5ee01115218f83872134f
+# created: 2024-03-15T16:26:15.743347415Z
diff --git a/.kokoro/build.sh b/.kokoro/build.sh
index d26b7e2..50c31f9 100755
--- a/.kokoro/build.sh
+++ b/.kokoro/build.sh
@@ -33,13 +33,6 @@ export GOOGLE_APPLICATION_CREDENTIALS=${KOKORO_GFILE_DIR}/service-account.json
 # Setup project id.
 export PROJECT_ID=$(cat "${KOKORO_GFILE_DIR}/project-id.json")
 
-# Remove old nox
-python3 -m pip uninstall --yes --quiet nox-automation
-
-# Install nox
-python3 -m pip install --upgrade --quiet nox
-python3 -m nox --version
-
 # If this is a continuous build, send the test log to the FlakyBot.
 # See https://github.com/googleapis/repo-automation-bots/tree/main/packages/flakybot.
 if [[ $KOKORO_BUILD_ARTIFACTS_SUBDIR = *"continuous"* ]]; then
diff --git a/.kokoro/docker/docs/Dockerfile b/.kokoro/docker/docs/Dockerfile
index 8e39a2c..bdaf39f 100644
--- a/.kokoro/docker/docs/Dockerfile
+++ b/.kokoro/docker/docs/Dockerfile
@@ -80,4 +80,8 @@ RUN wget -O /tmp/get-pip.py 'https://bootstrap.pypa.io/get-pip.py' \
 # Test pip
 RUN python3 -m pip
 
+# Install build requirements
+COPY requirements.txt /requirements.txt
+RUN python3 -m pip install --require-hashes -r requirements.txt
+
 CMD ["python3.8"]
diff --git a/.kokoro/docker/docs/noxfile.py b/.kokoro/docker/docs/noxfile.py
new file mode 100644
index 0000000..483b559
--- /dev/null
+++ b/.kokoro/docker/docs/noxfile.py
@@ -0,0 +1,292 @@
+# Copyright 2019 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from __future__ import print_function
+
+import glob
+import os
+from pathlib import Path
+import sys
+from typing import Callable, Dict, Optional
+
+import nox
+
+
+# WARNING - WARNING - WARNING - WARNING - WARNING
+# WARNING - WARNING - WARNING - WARNING - WARNING
+#           DO NOT EDIT THIS FILE EVER!
+# WARNING - WARNING - WARNING - WARNING - WARNING
+# WARNING - WARNING - WARNING - WARNING - WARNING
+
+BLACK_VERSION = "black==22.3.0"
+ISORT_VERSION = "isort==5.10.1"
+
+# Copy `noxfile_config.py` to your directory and modify it instead.
+
+# `TEST_CONFIG` dict is a configuration hook that allows users to
+# modify the test configurations. The values here should be in sync
+# with `noxfile_config.py`. Users will copy `noxfile_config.py` into
+# their directory and modify it.
+
+TEST_CONFIG = {
+    # You can opt out from the test for specific Python versions.
+    "ignored_versions": [],
+    # Old samples are opted out of enforcing Python type hints
+    # All new samples should feature them
+    "enforce_type_hints": False,
+    # An envvar key for determining the project id to use. Change it
+    # to 'BUILD_SPECIFIC_GCLOUD_PROJECT' if you want to opt in using a
+    # build specific Cloud project. You can also use your own string
+    # to use your own Cloud project.
+    "gcloud_project_env": "GOOGLE_CLOUD_PROJECT",
+    # 'gcloud_project_env': 'BUILD_SPECIFIC_GCLOUD_PROJECT',
+    # If you need to use a specific version of pip,
+    # change pip_version_override to the string representation
+    # of the version number, for example, "20.2.4"
+    "pip_version_override": None,
+    # A dictionary you want to inject into your test. Don't put any
+    # secrets here. These values will override predefined values.
+    "envs": {},
+}
+
+
+try:
+    # Ensure we can import noxfile_config in the project's directory.
+    sys.path.append(".")
+    from noxfile_config import TEST_CONFIG_OVERRIDE
+except ImportError as e:
+    print("No user noxfile_config found: detail: {}".format(e))
+    TEST_CONFIG_OVERRIDE = {}
+
+# Update the TEST_CONFIG with the user supplied values.
+TEST_CONFIG.update(TEST_CONFIG_OVERRIDE)
+
+
+def get_pytest_env_vars() -> Dict[str, str]:
+    """Returns a dict for pytest invocation."""
+    ret = {}
+
+    # Override the GCLOUD_PROJECT and the alias.
+    env_key = TEST_CONFIG["gcloud_project_env"]
+    # This should error out if not set.
+    ret["GOOGLE_CLOUD_PROJECT"] = os.environ[env_key]
+
+    # Apply user supplied envs.
+    ret.update(TEST_CONFIG["envs"])
+    return ret
+
+
+# DO NOT EDIT - automatically generated.
+# All versions used to test samples.
+ALL_VERSIONS = ["3.7", "3.8", "3.9", "3.10", "3.11", "3.12"]
+
+# Any default versions that should be ignored.
+IGNORED_VERSIONS = TEST_CONFIG["ignored_versions"]
+
+TESTED_VERSIONS = sorted([v for v in ALL_VERSIONS if v not in IGNORED_VERSIONS])
+
+INSTALL_LIBRARY_FROM_SOURCE = os.environ.get("INSTALL_LIBRARY_FROM_SOURCE", False) in (
+    "True",
+    "true",
+)
+
+# Error if a python version is missing
+nox.options.error_on_missing_interpreters = True
+
+#
+# Style Checks
+#
+
+
+# Linting with flake8.
+#
+# We ignore the following rules:
+#   E203: whitespace before ‘:’
+#   E266: too many leading ‘#’ for block comment
+#   E501: line too long
+#   I202: Additional newline in a section of imports
+#
+# We also need to specify the rules which are ignored by default:
+# ['E226', 'W504', 'E126', 'E123', 'W503', 'E24', 'E704', 'E121']
+FLAKE8_COMMON_ARGS = [
+    "--show-source",
+    "--builtin=gettext",
+    "--max-complexity=20",
+    "--exclude=.nox,.cache,env,lib,generated_pb2,*_pb2.py,*_pb2_grpc.py",
+    "--ignore=E121,E123,E126,E203,E226,E24,E266,E501,E704,W503,W504,I202",
+    "--max-line-length=88",
+]
+
+
+@nox.session
+def lint(session: nox.sessions.Session) -> None:
+    if not TEST_CONFIG["enforce_type_hints"]:
+        session.install("flake8")
+    else:
+        session.install("flake8", "flake8-annotations")
+
+    args = FLAKE8_COMMON_ARGS + [
+        ".",
+    ]
+    session.run("flake8", *args)
+
+
+#
+# Black
+#
+
+
+@nox.session
+def blacken(session: nox.sessions.Session) -> None:
+    """Run black. Format code to uniform standard."""
+    session.install(BLACK_VERSION)
+    python_files = [path for path in os.listdir(".") if path.endswith(".py")]
+
+    session.run("black", *python_files)
+
+
+#
+# format = isort + black
+#
+
+@nox.session
+def format(session: nox.sessions.Session) -> None:
+    """
+    Run isort to sort imports. Then run black
+    to format code to uniform standard.
+    """
+    session.install(BLACK_VERSION, ISORT_VERSION)
+    python_files = [path for path in os.listdir(".") if path.endswith(".py")]
+
+    # Use the --fss option to sort imports using strict alphabetical order.
+    # See https://pycqa.github.io/isort/docs/configuration/options.html#force-sort-within-sections
+    session.run("isort", "--fss", *python_files)
+    session.run("black", *python_files)
+
+
+#
+# Sample Tests
+#
+
+
+PYTEST_COMMON_ARGS = ["--junitxml=sponge_log.xml"]
+
+
+def _session_tests(
+    session: nox.sessions.Session, post_install: Callable = None
+) -> None:
+    # check for presence of tests
+    test_list = glob.glob("**/*_test.py", recursive=True) + glob.glob("**/test_*.py", recursive=True)
+    test_list.extend(glob.glob("**/tests", recursive=True))
+
+    if len(test_list) == 0:
+        print("No tests found, skipping directory.")
+        return
+
+    if TEST_CONFIG["pip_version_override"]:
+        pip_version = TEST_CONFIG["pip_version_override"]
+        session.install(f"pip=={pip_version}")
+    """Runs py.test for a particular project."""
+    concurrent_args = []
+    if os.path.exists("requirements.txt"):
+        if os.path.exists("constraints.txt"):
+            session.install("-r", "requirements.txt", "-c", "constraints.txt")
+        else:
+            session.install("-r", "requirements.txt")
+        with open("requirements.txt") as rfile:
+            packages = rfile.read()
+
+    if os.path.exists("requirements-test.txt"):
+        if os.path.exists("constraints-test.txt"):
+            session.install(
+                "-r", "requirements-test.txt", "-c", "constraints-test.txt"
+            )
+        else:
+            session.install("-r", "requirements-test.txt")
+        with open("requirements-test.txt") as rtfile:
+            packages += rtfile.read()
+
+    if INSTALL_LIBRARY_FROM_SOURCE:
+        session.install("-e", _get_repo_root())
+
+    if post_install:
+        post_install(session)
+
+    if "pytest-parallel" in packages:
+        concurrent_args.extend(['--workers', 'auto', '--tests-per-worker', 'auto'])
+    elif "pytest-xdist" in packages:
+        concurrent_args.extend(['-n', 'auto'])
+
+    session.run(
+        "pytest",
+        *(PYTEST_COMMON_ARGS + session.posargs + concurrent_args),
+        # Pytest will return 5 when no tests are collected. This can happen
+        # on travis where slow and flaky tests are excluded.
+        # See http://doc.pytest.org/en/latest/_modules/_pytest/main.html
+        success_codes=[0, 5],
+        env=get_pytest_env_vars(),
+    )
+
+
+@nox.session(python=ALL_VERSIONS)
+def py(session: nox.sessions.Session) -> None:
+    """Runs py.test for a sample using the specified version of Python."""
+    if session.python in TESTED_VERSIONS:
+        _session_tests(session)
+    else:
+        session.skip(
+            "SKIPPED: {} tests are disabled for this sample.".format(session.python)
+        )
+
+
+#
+# Readmegen
+#
+
+
+def _get_repo_root() -> Optional[str]:
+    """ Returns the root folder of the project. """
+    # Get root of this repository. Assume we don't have directories nested deeper than 10 items.
+    p = Path(os.getcwd())
+    for i in range(10):
+        if p is None:
+            break
+        if Path(p / ".git").exists():
+            return str(p)
+        # .git is not available in repos cloned via Cloud Build
+        # setup.py is always in the library's root, so use that instead
+        # https://github.com/googleapis/synthtool/issues/792
+        if Path(p / "setup.py").exists():
+            return str(p)
+        p = p.parent
+    raise Exception("Unable to detect repository root.")
+
+
+GENERATED_READMES = sorted([x for x in Path(".").rglob("*.rst.in")])
+
+
+@nox.session
+@nox.parametrize("path", GENERATED_READMES)
+def readmegen(session: nox.sessions.Session, path: str) -> None:
+    """(Re-)generates the readme for a sample."""
+    session.install("jinja2", "pyyaml")
+    dir_ = os.path.dirname(path)
+
+    if os.path.exists(os.path.join(dir_, "requirements.txt")):
+        session.install("-r", os.path.join(dir_, "requirements.txt"))
+
+    in_file = os.path.join(dir_, "README.rst.in")
+    session.run(
+        "python", _get_repo_root() + "/scripts/readme-gen/readme_gen.py", in_file
+    )
diff --git a/.kokoro/docker/docs/requirements.in b/.kokoro/docker/docs/requirements.in
new file mode 100644
index 0000000..816817c
--- /dev/null
+++ b/.kokoro/docker/docs/requirements.in
@@ -0,0 +1 @@
+nox
diff --git a/.kokoro/docker/docs/requirements.txt b/.kokoro/docker/docs/requirements.txt
new file mode 100644
index 0000000..0e5d70f
--- /dev/null
+++ b/.kokoro/docker/docs/requirements.txt
@@ -0,0 +1,38 @@
+#
+# This file is autogenerated by pip-compile with Python 3.9
+# by the following command:
+#
+#    pip-compile --allow-unsafe --generate-hashes requirements.in
+#
+argcomplete==3.2.3 \
+    --hash=sha256:bf7900329262e481be5a15f56f19736b376df6f82ed27576fa893652c5de6c23 \
+    --hash=sha256:c12355e0494c76a2a7b73e3a59b09024ca0ba1e279fb9ed6c1b82d5b74b6a70c
+    # via nox
+colorlog==6.8.2 \
+    --hash=sha256:3e3e079a41feb5a1b64f978b5ea4f46040a94f11f0e8bbb8261e3dbbeca64d44 \
+    --hash=sha256:4dcbb62368e2800cb3c5abd348da7e53f6c362dda502ec27c560b2e58a66bd33
+    # via nox
+distlib==0.3.8 \
+    --hash=sha256:034db59a0b96f8ca18035f36290806a9a6e6bd9d1ff91e45a7f172eb17e51784 \
+    --hash=sha256:1530ea13e350031b6312d8580ddb6b27a104275a31106523b8f123787f494f64
+    # via virtualenv
+filelock==3.13.1 \
+    --hash=sha256:521f5f56c50f8426f5e03ad3b281b490a87ef15bc6c526f168290f0c7148d44e \
+    --hash=sha256:57dbda9b35157b05fb3e58ee91448612eb674172fab98ee235ccb0b5bee19a1c
+    # via virtualenv
+nox==2024.3.2 \
+    --hash=sha256:e53514173ac0b98dd47585096a55572fe504fecede58ced708979184d05440be \
+    --hash=sha256:f521ae08a15adbf5e11f16cb34e8d0e6ea521e0b92868f684e91677deb974553
+    # via -r requirements.in
+packaging==24.0 \
+    --hash=sha256:2ddfb553fdf02fb784c234c7ba6ccc288296ceabec964ad2eae3777778130bc5 \
+    --hash=sha256:eb82c5e3e56209074766e6885bb04b8c38a0c015d0a30036ebe7ece34c9989e9
+    # via nox
+platformdirs==4.2.0 \
+    --hash=sha256:0614df2a2f37e1a662acbd8e2b25b92ccf8632929bc6d43467e17fe89c75e068 \
+    --hash=sha256:ef0cc731df711022c174543cb70a9b5bd22e5a9337c8624ef2c2ceb8ddad8768
+    # via virtualenv
+virtualenv==20.25.1 \
+    --hash=sha256:961c026ac520bac5f69acb8ea063e8a4f071bcc9457b9c1f28f6b085c511583a \
+    --hash=sha256:e08e13ecdca7a0bd53798f356d5831434afa5b07b93f0abdf0797b7a06ffe197
+    # via nox
diff --git a/google/iam/v1/iam_policy_pb2.py b/google/iam/v1/iam_policy_pb2.py
index 8e5c5ef..a80bed8 100644
--- a/google/iam/v1/iam_policy_pb2.py
+++ b/google/iam/v1/iam_policy_pb2.py
@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 
-# Copyright 2020 Google LLC
+# Copyright 2024 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/google/iam/v1/logging/audit_data_pb2.py b/google/iam/v1/logging/audit_data_pb2.py
index 7d12058..31a8376 100644
--- a/google/iam/v1/logging/audit_data_pb2.py
+++ b/google/iam/v1/logging/audit_data_pb2.py
@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 
-# Copyright 2020 Google LLC
+# Copyright 2024 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/google/iam/v1/options_pb2.py b/google/iam/v1/options_pb2.py
index d9912aa..2ec029b 100644
--- a/google/iam/v1/options_pb2.py
+++ b/google/iam/v1/options_pb2.py
@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 
-# Copyright 2020 Google LLC
+# Copyright 2024 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/google/iam/v1/policy_pb2.py b/google/iam/v1/policy_pb2.py
index 8b2f874..b6057f3 100644
--- a/google/iam/v1/policy_pb2.py
+++ b/google/iam/v1/policy_pb2.py
@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 
-# Copyright 2020 Google LLC
+# Copyright 2024 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.