From 8fd3313cfd108d7a959f9716aeaa45206f00bb8d Mon Sep 17 00:00:00 2001
From: Anthonios Partheniou <partheniou@google.com>
Date: Wed, 12 Nov 2025 20:01:50 +0000
Subject: [PATCH] chore(librarian): onboard to librarian

---
 .flake8                                       |  15 +-
 .github/.OwlBot.lock.yaml                     |  16 -
 .github/.OwlBot.yaml                          |  26 -
 .github/auto-approve.yml                      |   3 -
 .github/release-please.yml                    |   9 -
 .../generator-input/.repo-metadata.json       |  18 +
 .librarian/generator-input/noxfile.py         | 487 ++++++++++++++++++
 .librarian/generator-input/owlbot.py          |  76 +++
 .librarian/generator-input/setup.py           |  99 ++++
 .librarian/state.yaml                         |  42 ++
 .release-please-manifest.json                 |   3 -
 MANIFEST.in                                   |  13 +-
 docs/README.rst                               | 198 ++++++-
 docs/_templates/layout.html                   |   4 +-
 .../errorreporting_v1beta1/gapic_version.py   |   2 +-
 owlbot.py                                     |  25 +-
 release-please-config.json                    |  24 -
 17 files changed, 938 insertions(+), 122 deletions(-)
 delete mode 100644 .github/.OwlBot.lock.yaml
 delete mode 100644 .github/.OwlBot.yaml
 delete mode 100644 .github/auto-approve.yml
 delete mode 100644 .github/release-please.yml
 create mode 100644 .librarian/generator-input/.repo-metadata.json
 create mode 100644 .librarian/generator-input/noxfile.py
 create mode 100644 .librarian/generator-input/owlbot.py
 create mode 100644 .librarian/generator-input/setup.py
 create mode 100644 .librarian/state.yaml
 delete mode 100644 .release-please-manifest.json
 mode change 120000 => 100644 docs/README.rst
 delete mode 100644 release-please-config.json

diff --git a/.flake8 b/.flake8
index 32986c79..90316de2 100644
--- a/.flake8
+++ b/.flake8
@@ -1,28 +1,29 @@
 # -*- coding: utf-8 -*-
-#
-# Copyright 2024 Google LLC
+# Copyright 2025 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
 #
-#     https://www.apache.org/licenses/LICENSE-2.0
+#     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.
-
-# Generated by synthtool. DO NOT EDIT!
+#
 [flake8]
+# TODO(https://github.com/googleapis/gapic-generator-python/issues/2333):
+# Resolve flake8 lint issues
 ignore = E203, E231, E266, E501, W503
 exclude =
-  # Exclude generated code.
-  **/proto/**
+  # TODO(https://github.com/googleapis/gapic-generator-python/issues/2333):
+  # Ensure that generated code passes flake8 lint
   **/gapic/**
   **/services/**
   **/types/**
+  # Exclude Protobuf gencode
   *_pb2.py
 
   # Standard linting exemptions.
diff --git a/.github/.OwlBot.lock.yaml b/.github/.OwlBot.lock.yaml
deleted file mode 100644
index c58733d0..00000000
--- a/.github/.OwlBot.lock.yaml
+++ /dev/null
@@ -1,16 +0,0 @@
-# Copyright 2025 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.
-docker:
-  image: gcr.io/cloud-devrel-public-resources/owlbot-python:latest
-  digest: sha256:fbbc8db67afd8b7d71bf694c5081a32da0c528eba166fbcffb3b6e56ddf907d5
diff --git a/.github/.OwlBot.yaml b/.github/.OwlBot.yaml
deleted file mode 100644
index 18f04683..00000000
--- a/.github/.OwlBot.yaml
+++ /dev/null
@@ -1,26 +0,0 @@
-# Copyright 2021 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.
-
-docker:
-  image: gcr.io/cloud-devrel-public-resources/owlbot-python:latest
-
-deep-remove-regex:
-  - /owl-bot-staging
-
-deep-copy-regex:
-  - source: /google/devtools/clouderrorreporting/(v.*)/.*-py/(.*)
-    dest: /owl-bot-staging/$1/$2
-
-begin-after-commit-hash: b06c9034cfcbce180ba732d03be6526e5c8ea1bc
-
diff --git a/.github/auto-approve.yml b/.github/auto-approve.yml
deleted file mode 100644
index 311ebbb8..00000000
--- a/.github/auto-approve.yml
+++ /dev/null
@@ -1,3 +0,0 @@
-# https://github.com/googleapis/repo-automation-bots/tree/main/packages/auto-approve
-processes:
-  - "OwlBotTemplateChanges"
diff --git a/.github/release-please.yml b/.github/release-please.yml
deleted file mode 100644
index e9a4f008..00000000
--- a/.github/release-please.yml
+++ /dev/null
@@ -1,9 +0,0 @@
-releaseType: python
-handleGHRelease: true
-manifest: true
-# NOTE: this section is generated by synthtool.languages.python
-# See https://github.com/googleapis/synthtool/blob/master/synthtool/languages/python.py
-branches:
-- branch: v0
-  handleGHRelease: true
-  releaseType: python
diff --git a/.librarian/generator-input/.repo-metadata.json b/.librarian/generator-input/.repo-metadata.json
new file mode 100644
index 00000000..e032093f
--- /dev/null
+++ b/.librarian/generator-input/.repo-metadata.json
@@ -0,0 +1,18 @@
+{
+    "name": "clouderrorreporting",
+    "name_pretty": "Error Reporting",
+    "product_documentation": "https://cloud.google.com/error-reporting",
+    "client_documentation": "https://cloud.google.com/python/docs/reference/clouderrorreporting/latest",
+    "issue_tracker": "https://issuetracker.google.com/savedsearches/559780",
+    "release_level": "preview",
+    "language": "python",
+    "library_type": "GAPIC_COMBO",
+    "repo": "googleapis/python-error-reporting",
+    "distribution_name": "google-cloud-error-reporting",
+    "api_id": "clouderrorreporting.googleapis.com",
+    "requires_billing": false,
+    "codeowner_team": "@googleapis/api-logging @googleapis/api-logging-partners",
+    "default_version": "v1beta1",
+    "api_shortname": "clouderrorreporting",
+    "api_description": "counts, analyzes and aggregates the crashes in your running cloud services.  A centralized error management interface displays the results with sorting and filtering capabilities. A dedicated view shows the error details: time chart, occurrences, affected user count, first and last seen dates and a cleaned exception stack trace. Opt-in to receive email and mobile alerts on new errors."
+}
diff --git a/.librarian/generator-input/noxfile.py b/.librarian/generator-input/noxfile.py
new file mode 100644
index 00000000..35c5330b
--- /dev/null
+++ b/.librarian/generator-input/noxfile.py
@@ -0,0 +1,487 @@
+# -*- coding: utf-8 -*-
+#
+# 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.
+# You may obtain a copy of the License at
+#
+#     https://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.
+
+# Generated by synthtool. DO NOT EDIT!
+
+from __future__ import absolute_import
+
+import os
+import pathlib
+import re
+import shutil
+from typing import Dict, List
+import warnings
+
+import nox
+
+FLAKE8_VERSION = "flake8==6.1.0"
+BLACK_VERSION = "black[jupyter]==23.7.0"
+ISORT_VERSION = "isort==5.11.0"
+LINT_PATHS = ["docs", "google", "tests", "noxfile.py", "setup.py"]
+
+DEFAULT_PYTHON_VERSION = "3.14"
+
+UNIT_TEST_PYTHON_VERSIONS: List[str] = [
+    "3.7",
+    "3.8",
+    "3.9",
+    "3.10",
+    "3.11",
+    "3.12",
+    "3.13",
+    "3.14",
+]
+UNIT_TEST_STANDARD_DEPENDENCIES = [
+    "mock",
+    "asyncmock",
+    "pytest",
+    "pytest-cov",
+    "pytest-asyncio",
+]
+UNIT_TEST_EXTERNAL_DEPENDENCIES: List[str] = []
+UNIT_TEST_LOCAL_DEPENDENCIES: List[str] = []
+UNIT_TEST_DEPENDENCIES: List[str] = []
+UNIT_TEST_EXTRAS: List[str] = []
+UNIT_TEST_EXTRAS_BY_PYTHON: Dict[str, List[str]] = {}
+
+SYSTEM_TEST_PYTHON_VERSIONS: List[str] = ["3.14"]
+SYSTEM_TEST_STANDARD_DEPENDENCIES: List[str] = [
+    "mock",
+    "pytest",
+    "google-cloud-testutils",
+]
+SYSTEM_TEST_EXTERNAL_DEPENDENCIES: List[str] = []
+SYSTEM_TEST_LOCAL_DEPENDENCIES: List[str] = []
+SYSTEM_TEST_DEPENDENCIES: List[str] = []
+SYSTEM_TEST_EXTRAS: List[str] = []
+SYSTEM_TEST_EXTRAS_BY_PYTHON: Dict[str, List[str]] = {}
+
+CURRENT_DIRECTORY = pathlib.Path(__file__).parent.absolute()
+
+nox.options.sessions = [
+    "system",
+]
+
+# Error if a python version is missing
+nox.options.error_on_missing_interpreters = True
+
+
+@nox.session(python=DEFAULT_PYTHON_VERSION)
+def lint(session):
+    """Run linters.
+
+    Returns a failure if the linters find linting errors or sufficiently
+    serious code quality issues.
+    """
+    session.install(FLAKE8_VERSION, BLACK_VERSION)
+    session.run(
+        "black",
+        "--check",
+        *LINT_PATHS,
+    )
+    session.run("flake8", "google", "tests")
+
+
+@nox.session(python=DEFAULT_PYTHON_VERSION)
+def blacken(session):
+    """Run black. Format code to uniform standard."""
+    session.install(BLACK_VERSION)
+    session.run(
+        "black",
+        *LINT_PATHS,
+    )
+
+
+@nox.session(python=DEFAULT_PYTHON_VERSION)
+def format(session):
+    """
+    Run isort to sort imports. Then run black
+    to format code to uniform standard.
+    """
+    session.install(BLACK_VERSION, ISORT_VERSION)
+    # 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",
+        *LINT_PATHS,
+    )
+    session.run(
+        "black",
+        *LINT_PATHS,
+    )
+
+
+@nox.session(python=DEFAULT_PYTHON_VERSION)
+def lint_setup_py(session):
+    """Verify that setup.py is valid (including RST check)."""
+    session.install("docutils", "pygments", "setuptools")
+    session.run("python", "setup.py", "check", "--restructuredtext", "--strict")
+
+
+def install_unittest_dependencies(session, *constraints):
+    standard_deps = UNIT_TEST_STANDARD_DEPENDENCIES + UNIT_TEST_DEPENDENCIES
+    session.install(*standard_deps, *constraints)
+
+    if UNIT_TEST_EXTERNAL_DEPENDENCIES:
+        warnings.warn(
+            "'unit_test_external_dependencies' is deprecated. Instead, please "
+            "use 'unit_test_dependencies' or 'unit_test_local_dependencies'.",
+            DeprecationWarning,
+        )
+        session.install(*UNIT_TEST_EXTERNAL_DEPENDENCIES, *constraints)
+
+    if UNIT_TEST_LOCAL_DEPENDENCIES:
+        session.install(*UNIT_TEST_LOCAL_DEPENDENCIES, *constraints)
+
+    if UNIT_TEST_EXTRAS_BY_PYTHON:
+        extras = UNIT_TEST_EXTRAS_BY_PYTHON.get(session.python, [])
+    elif UNIT_TEST_EXTRAS:
+        extras = UNIT_TEST_EXTRAS
+    else:
+        extras = []
+
+    if extras:
+        session.install("-e", f".[{','.join(extras)}]", *constraints)
+    else:
+        session.install("-e", ".", *constraints)
+
+
+@nox.session(python=UNIT_TEST_PYTHON_VERSIONS)
+@nox.parametrize(
+    "protobuf_implementation",
+    ["python", "upb", "cpp"],
+)
+def unit(session, protobuf_implementation):
+    # Install all test dependencies, then install this package in-place.
+
+    if protobuf_implementation == "cpp" and session.python in (
+        "3.11",
+        "3.12",
+        "3.13",
+        "3.14",
+    ):
+        session.skip("cpp implementation is not supported in python 3.11+")
+
+    constraints_path = str(
+        CURRENT_DIRECTORY / "testing" / f"constraints-{session.python}.txt"
+    )
+    install_unittest_dependencies(session, "-c", constraints_path)
+
+    # TODO(https://github.com/googleapis/synthtool/issues/1976):
+    # Remove the 'cpp' implementation once support for Protobuf 3.x is dropped.
+    # The 'cpp' implementation requires Protobuf<4.
+    if protobuf_implementation == "cpp":
+        session.install("protobuf<4")
+
+    # Run py.test against the unit tests.
+    session.run(
+        "py.test",
+        "--quiet",
+        f"--junitxml=unit_{session.python}_sponge_log.xml",
+        "--cov=google",
+        "--cov=tests/unit",
+        "--cov-append",
+        "--cov-config=.coveragerc",
+        "--cov-report=",
+        "--cov-fail-under=0",
+        os.path.join("tests", "unit"),
+        *session.posargs,
+        env={
+            "PROTOCOL_BUFFERS_PYTHON_IMPLEMENTATION": protobuf_implementation,
+        },
+    )
+
+
+def install_systemtest_dependencies(session, *constraints):
+    # Use pre-release gRPC for system tests.
+    # Exclude version 1.52.0rc1 which has a known issue.
+    # See https://github.com/grpc/grpc/issues/32163
+    session.install("--pre", "grpcio!=1.52.0rc1")
+
+    session.install(*SYSTEM_TEST_STANDARD_DEPENDENCIES, *constraints)
+
+    if SYSTEM_TEST_EXTERNAL_DEPENDENCIES:
+        session.install(*SYSTEM_TEST_EXTERNAL_DEPENDENCIES, *constraints)
+
+    if SYSTEM_TEST_LOCAL_DEPENDENCIES:
+        session.install("-e", *SYSTEM_TEST_LOCAL_DEPENDENCIES, *constraints)
+
+    if SYSTEM_TEST_DEPENDENCIES:
+        session.install("-e", *SYSTEM_TEST_DEPENDENCIES, *constraints)
+
+    if SYSTEM_TEST_EXTRAS_BY_PYTHON:
+        extras = SYSTEM_TEST_EXTRAS_BY_PYTHON.get(session.python, [])
+    elif SYSTEM_TEST_EXTRAS:
+        extras = SYSTEM_TEST_EXTRAS
+    else:
+        extras = []
+
+    if extras:
+        session.install("-e", f".[{','.join(extras)}]", *constraints)
+    else:
+        session.install("-e", ".", *constraints)
+
+
+@nox.session(python=SYSTEM_TEST_PYTHON_VERSIONS)
+def system(session):
+    """Run the system test suite."""
+    constraints_path = str(
+        CURRENT_DIRECTORY / "testing" / f"constraints-{session.python}.txt"
+    )
+    system_test_path = os.path.join("tests", "system.py")
+    system_test_folder_path = os.path.join("tests", "system")
+
+    # Check the value of `RUN_SYSTEM_TESTS` env var. It defaults to true.
+    if os.environ.get("RUN_SYSTEM_TESTS", "true") == "false":
+        session.skip("RUN_SYSTEM_TESTS is set to false, skipping")
+    # Install pyopenssl for mTLS testing.
+    if os.environ.get("GOOGLE_API_USE_CLIENT_CERTIFICATE", "false") == "true":
+        session.install("pyopenssl")
+
+    system_test_exists = os.path.exists(system_test_path)
+    system_test_folder_exists = os.path.exists(system_test_folder_path)
+    # Sanity check: only run tests if found.
+    if not system_test_exists and not system_test_folder_exists:
+        session.skip("System tests were not found")
+
+    install_systemtest_dependencies(session, "-c", constraints_path)
+
+    # Run py.test against the system tests.
+    if system_test_exists:
+        session.run(
+            "py.test",
+            "--quiet",
+            f"--junitxml=system_{session.python}_sponge_log.xml",
+            system_test_path,
+            *session.posargs,
+        )
+    if system_test_folder_exists:
+        session.run(
+            "py.test",
+            "--quiet",
+            f"--junitxml=system_{session.python}_sponge_log.xml",
+            system_test_folder_path,
+            *session.posargs,
+        )
+
+
+@nox.session(python=DEFAULT_PYTHON_VERSION)
+def cover(session):
+    """Run the final coverage report.
+
+    This outputs the coverage report aggregating coverage from the unit
+    test runs (not system test runs), and then erases coverage data.
+    """
+    session.install("coverage", "pytest-cov")
+    session.run("coverage", "report", "--show-missing", "--fail-under=100")
+
+    session.run("coverage", "erase")
+
+
+@nox.session(python="3.10")
+def docs(session):
+    """Build the docs for this library."""
+
+    session.install("-e", ".")
+    session.install(
+        # We need to pin to specific versions of the `sphinxcontrib-*` packages
+        # which still support sphinx 4.x.
+        # See https://github.com/googleapis/sphinx-docfx-yaml/issues/344
+        # and https://github.com/googleapis/sphinx-docfx-yaml/issues/345.
+        "sphinxcontrib-applehelp==1.0.4",
+        "sphinxcontrib-devhelp==1.0.2",
+        "sphinxcontrib-htmlhelp==2.0.1",
+        "sphinxcontrib-qthelp==1.0.3",
+        "sphinxcontrib-serializinghtml==1.1.5",
+        "sphinx==4.5.0",
+        "alabaster",
+        "recommonmark",
+    )
+
+    shutil.rmtree(os.path.join("docs", "_build"), ignore_errors=True)
+    session.run(
+        "sphinx-build",
+        "-W",  # warnings as errors
+        "-T",  # show full traceback on exception
+        "-N",  # no colors
+        "-b",
+        "html",
+        "-d",
+        os.path.join("docs", "_build", "doctrees", ""),
+        os.path.join("docs", ""),
+        os.path.join("docs", "_build", "html", ""),
+    )
+
+
+@nox.session(python="3.10")
+def docfx(session):
+    """Build the docfx yaml files for this library."""
+
+    session.install("-e", ".")
+    session.install(
+        # We need to pin to specific versions of the `sphinxcontrib-*` packages
+        # which still support sphinx 4.x.
+        # See https://github.com/googleapis/sphinx-docfx-yaml/issues/344
+        # and https://github.com/googleapis/sphinx-docfx-yaml/issues/345.
+        "sphinxcontrib-applehelp==1.0.4",
+        "sphinxcontrib-devhelp==1.0.2",
+        "sphinxcontrib-htmlhelp==2.0.1",
+        "sphinxcontrib-qthelp==1.0.3",
+        "sphinxcontrib-serializinghtml==1.1.5",
+        "gcp-sphinx-docfx-yaml",
+        "alabaster",
+        "recommonmark",
+    )
+
+    shutil.rmtree(os.path.join("docs", "_build"), ignore_errors=True)
+    session.run(
+        "sphinx-build",
+        "-T",  # show full traceback on exception
+        "-N",  # no colors
+        "-D",
+        (
+            "extensions=sphinx.ext.autodoc,"
+            "sphinx.ext.autosummary,"
+            "docfx_yaml.extension,"
+            "sphinx.ext.intersphinx,"
+            "sphinx.ext.coverage,"
+            "sphinx.ext.napoleon,"
+            "sphinx.ext.todo,"
+            "sphinx.ext.viewcode,"
+            "recommonmark"
+        ),
+        "-b",
+        "html",
+        "-d",
+        os.path.join("docs", "_build", "doctrees", ""),
+        os.path.join("docs", ""),
+        os.path.join("docs", "_build", "html", ""),
+    )
+
+
+@nox.session(python=DEFAULT_PYTHON_VERSION)
+@nox.parametrize(
+    "protobuf_implementation",
+    ["python", "upb", "cpp"],
+)
+def prerelease_deps(session, protobuf_implementation):
+    """Run all tests with prerelease versions of dependencies installed."""
+
+    if protobuf_implementation == "cpp" and session.python in (
+        "3.11",
+        "3.12",
+        "3.13",
+        "3.14",
+    ):
+        session.skip("cpp implementation is not supported in python 3.11+")
+
+    # Install all dependencies
+    session.install("-e", ".[all, tests, tracing]")
+    unit_deps_all = UNIT_TEST_STANDARD_DEPENDENCIES + UNIT_TEST_EXTERNAL_DEPENDENCIES
+    session.install(*unit_deps_all)
+    system_deps_all = (
+        SYSTEM_TEST_STANDARD_DEPENDENCIES + SYSTEM_TEST_EXTERNAL_DEPENDENCIES
+    )
+    session.install(*system_deps_all)
+
+    # Because we test minimum dependency versions on the minimum Python
+    # version, the first version we test with in the unit tests sessions has a
+    # constraints file containing all dependencies and extras.
+    with open(
+        CURRENT_DIRECTORY
+        / "testing"
+        / f"constraints-{UNIT_TEST_PYTHON_VERSIONS[0]}.txt",
+        encoding="utf-8",
+    ) as constraints_file:
+        constraints_text = constraints_file.read()
+
+    # Ignore leading whitespace and comment lines.
+    constraints_deps = [
+        match.group(1)
+        for match in re.finditer(
+            r"^\s*(\S+)(?===\S+)", constraints_text, flags=re.MULTILINE
+        )
+    ]
+
+    session.install(*constraints_deps)
+
+    prerel_deps = [
+        "protobuf",
+        # dependency of grpc
+        "six",
+        "grpc-google-iam-v1",
+        "googleapis-common-protos",
+        "grpcio",
+        "grpcio-status",
+        "google-api-core",
+        "google-auth",
+        "proto-plus",
+        "google-cloud-testutils",
+        # dependencies of google-cloud-testutils"
+        "click",
+    ]
+
+    for dep in prerel_deps:
+        session.install("--pre", "--no-deps", "--upgrade", dep)
+
+    # Remaining dependencies
+    other_deps = [
+        "requests",
+    ]
+    session.install(*other_deps)
+
+    # Print out prerelease package versions
+    session.run(
+        "python", "-c", "import google.protobuf; print(google.protobuf.__version__)"
+    )
+    session.run("python", "-c", "import grpc; print(grpc.__version__)")
+    session.run("python", "-c", "import google.auth; print(google.auth.__version__)")
+
+    session.run(
+        "py.test",
+        "tests/unit",
+        env={
+            "PROTOCOL_BUFFERS_PYTHON_IMPLEMENTATION": protobuf_implementation,
+        },
+    )
+
+    system_test_path = os.path.join("tests", "system.py")
+    system_test_folder_path = os.path.join("tests", "system")
+
+    # Only run system tests if found.
+    if os.path.exists(system_test_path):
+        session.run(
+            "py.test",
+            "--verbose",
+            f"--junitxml=system_{session.python}_sponge_log.xml",
+            system_test_path,
+            *session.posargs,
+            env={
+                "PROTOCOL_BUFFERS_PYTHON_IMPLEMENTATION": protobuf_implementation,
+            },
+        )
+    if os.path.exists(system_test_folder_path):
+        session.run(
+            "py.test",
+            "--verbose",
+            f"--junitxml=system_{session.python}_sponge_log.xml",
+            system_test_folder_path,
+            *session.posargs,
+            env={
+                "PROTOCOL_BUFFERS_PYTHON_IMPLEMENTATION": protobuf_implementation,
+            },
+        )
diff --git a/.librarian/generator-input/owlbot.py b/.librarian/generator-input/owlbot.py
new file mode 100644
index 00000000..76977beb
--- /dev/null
+++ b/.librarian/generator-input/owlbot.py
@@ -0,0 +1,76 @@
+# Copyright 2022 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.
+
+import json
+import os
+from pathlib import Path
+import shutil
+
+import synthtool as s
+import synthtool.gcp as gcp
+from synthtool.languages import python
+
+# ----------------------------------------------------------------------------
+# Copy the generated client from the owl-bot staging directory
+# ----------------------------------------------------------------------------
+
+clean_up_generated_samples = True
+
+# Load the default version defined in .repo-metadata.json.
+default_version = json.load(open(".repo-metadata.json", "rt")).get("default_version")
+
+for library in s.get_staging_dirs(default_version):
+    if clean_up_generated_samples:
+        shutil.rmtree("samples/generated_samples", ignore_errors=True)
+        clean_up_generated_samples = False
+
+    s.move(
+        [library],
+        excludes=[
+            "docs/index.rst",
+            "google/cloud/errorreporting/",
+            "setup.py",
+            "testing/constraints-3.7.txt",
+            "testing/constraints-3.8.txt",
+            "noxfile.py",
+        ],
+    )
+s.remove_staging_dirs()
+
+# ----------------------------------------------------------------------------
+# Add templated files
+# ----------------------------------------------------------------------------
+
+templated_files = gcp.CommonTemplates().py_library(
+    cov_level=100,
+    microgenerator=True,
+    versions=gcp.common.detect_versions(path="./google", default_first=True),
+)
+s.move(
+    templated_files,
+    excludes=[
+        ".coveragerc",
+        ".github/**",
+        ".kokoro/**",
+        "docs/conf.py",
+        "docs/index.rst",
+        "testing/constraints-3.7.txt",
+    ],
+)
+
+python.py_samples(skip_readmes=True)
+
+# run format session for all directories which have a noxfile
+for noxfile in Path(".").glob("**/noxfile.py"):
+    s.shell.run(["nox", "-s", "blacken"], cwd=noxfile.parent, hide_output=False)
diff --git a/.librarian/generator-input/setup.py b/.librarian/generator-input/setup.py
new file mode 100644
index 00000000..c80d2b25
--- /dev/null
+++ b/.librarian/generator-input/setup.py
@@ -0,0 +1,99 @@
+# -*- coding: utf-8 -*-
+# Copyright 2022 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.
+#
+import io
+import os
+
+import setuptools  # type: ignore
+
+package_root = os.path.abspath(os.path.dirname(__file__))
+
+name = "google-cloud-error-reporting"
+
+
+description = "Google Cloud Error Reporting API client library"
+
+version = {}
+with open(
+    os.path.join(package_root, "google/cloud/error_reporting/gapic_version.py")
+) as fp:
+    exec(fp.read(), version)
+version = version["__version__"]
+
+if version[0] == "0":
+    release_status = "Development Status :: 4 - Beta"
+else:
+    release_status = "Development Status :: 5 - Production/Stable"
+
+dependencies = [
+    "google-cloud-logging>=1.14.0, <4.0.0",
+    # Exclude incompatible versions of `google-auth`
+    # See https://github.com/googleapis/google-cloud-python/issues/12364
+    "google-auth >= 2.14.1, <3.0.0,!=2.24.0,!=2.25.0",
+    "google-api-core[grpc] >= 1.34.0, <3.0.0,!=2.0.*,!=2.1.*,!=2.2.*,!=2.3.*,!=2.4.*,!=2.5.*,!=2.6.*,!=2.7.*,!=2.8.*,!=2.9.*,!=2.10.*",
+    "grpcio >= 1.33.2, < 2.0.0",
+    "grpcio >= 1.75.1, < 2.0.0; python_version >= '3.14'",
+    "proto-plus >= 1.22.0, <2.0.0",
+    "proto-plus >= 1.22.2, <2.0.0; python_version>='3.11'",
+    "proto-plus >= 1.25.0, <2.0.0dev; python_version>='3.13'",
+    "protobuf>=3.20.2,<7.0.0,!=4.21.0,!=4.21.1,!=4.21.2,!=4.21.3,!=4.21.4,!=4.21.5",
+]
+url = "https://github.com/googleapis/python-error-reporting"
+
+package_root = os.path.abspath(os.path.dirname(__file__))
+
+readme_filename = os.path.join(package_root, "README.rst")
+with io.open(readme_filename, encoding="utf-8") as readme_file:
+    readme = readme_file.read()
+
+packages = [
+    package
+    for package in setuptools.find_namespace_packages()
+    if package.startswith("google")
+]
+
+setuptools.setup(
+    name=name,
+    version=version,
+    description=description,
+    long_description=readme,
+    author="Google LLC",
+    author_email="googleapis-packages@google.com",
+    license="Apache 2.0",
+    url=url,
+    classifiers=[
+        release_status,
+        "Intended Audience :: Developers",
+        "License :: OSI Approved :: Apache Software License",
+        "Programming Language :: Python",
+        "Programming Language :: Python :: 3",
+        "Programming Language :: Python :: 3.7",
+        "Programming Language :: Python :: 3.8",
+        "Programming Language :: Python :: 3.9",
+        "Programming Language :: Python :: 3.10",
+        "Programming Language :: Python :: 3.11",
+        "Programming Language :: Python :: 3.12",
+        "Programming Language :: Python :: 3.13",
+        "Programming Language :: Python :: 3.14",
+        "Operating System :: OS Independent",
+        "Topic :: Internet",
+    ],
+    platforms="Posix; MacOS X; Windows",
+    packages=packages,
+    python_requires=">=3.7",
+    install_requires=dependencies,
+    include_package_data=True,
+    zip_safe=False,
+)
diff --git a/.librarian/state.yaml b/.librarian/state.yaml
new file mode 100644
index 00000000..b4a06d7e
--- /dev/null
+++ b/.librarian/state.yaml
@@ -0,0 +1,42 @@
+image: us-central1-docker.pkg.dev/cloud-sdk-librarian-prod/images-prod/python-librarian-generator@sha256:ce48ed695c727f7e13efd1fd68f466a55a0d772c87b69158720cec39965bc8b2
+libraries:
+  - id: google-cloud-error-reporting
+    version: 1.13.0
+    last_generated_commit: cf0434f4bd20618db60ddd16a1e7db2c0dfb9158
+    apis:
+      - path: google/devtools/clouderrorreporting/v1beta1
+        service_config: clouderrorreporting_v1beta1.yaml
+    source_roots:
+      - .
+    preserve_regex: []
+    remove_regex:
+      - ^google/cloud/errorreporting_v1beta1
+      - ^docs/_static
+      - ^docs/_templates
+      - ^docs/errorreporting_v1beta1
+      - ^docs/multiprocessing.rst
+      - ^docs/conf.py
+      - ^docs/README.rst
+      - ^docs/summary_overview.md
+      - ^tests/unit/gapic
+      - ^tests/__init__.py
+      - ^tests/unit/__init__.py
+      - ^.coveragerc
+      - ^.flake8
+      - ^.pre-commit-config.yaml
+      - ^.repo-metadata.json
+      - ^.trampolinerc
+      - ^LICENSE
+      - ^MANIFEST.in
+      - ^README.rst
+      - ^SECURITY.md
+      - ^mypy.ini
+      - ^noxfile.py
+      - ^owlbot.py
+      - ^renovate.json
+      - ^samples/generated_samples
+      - ^scripts/fixup_
+      - ^setup.py
+      - ^testing/constraints-3.9
+      - ^testing/constraints-3.1
+    tag_format: v{version}
diff --git a/.release-please-manifest.json b/.release-please-manifest.json
deleted file mode 100644
index 5c63354e..00000000
--- a/.release-please-manifest.json
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    ".": "1.13.0"
-}
diff --git a/MANIFEST.in b/MANIFEST.in
index d6814cd6..dae249ec 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -1,25 +1,20 @@
 # -*- coding: utf-8 -*-
-#
-# Copyright 2024 Google LLC
+# Copyright 2025 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
 #
-#     https://www.apache.org/licenses/LICENSE-2.0
+#     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.
-
-# Generated by synthtool. DO NOT EDIT!
+#
 include README.rst LICENSE
-recursive-include google *.json *.proto py.typed
+recursive-include google *.py *.pyi *.json *.proto py.typed
 recursive-include tests *
 global-exclude *.py[co]
 global-exclude __pycache__
-
-# Exclude scripts for samples readmegen
-prune scripts/readme-gen
diff --git a/docs/README.rst b/docs/README.rst
deleted file mode 120000
index 89a01069..00000000
--- a/docs/README.rst
+++ /dev/null
@@ -1 +0,0 @@
-../README.rst
\ No newline at end of file
diff --git a/docs/README.rst b/docs/README.rst
new file mode 100644
index 00000000..7a401641
--- /dev/null
+++ b/docs/README.rst
@@ -0,0 +1,197 @@
+Python Client for Error Reporting API
+=====================================
+
+|preview| |pypi| |versions|
+
+`Error Reporting API`_: counts, analyzes and aggregates the crashes in your running cloud services.  A centralized error management interface displays the results with sorting and filtering capabilities. A dedicated view shows the error details: time chart, occurrences, affected user count, first and last seen dates and a cleaned exception stack trace. Opt-in to receive email and mobile alerts on new errors.
+
+- `Client Library Documentation`_
+- `Product Documentation`_
+
+.. |preview| image:: https://img.shields.io/badge/support-preview-orange.svg
+   :target: https://github.com/googleapis/google-cloud-python/blob/main/README.rst#stability-levels
+.. |pypi| image:: https://img.shields.io/pypi/v/google-cloud-error-reporting.svg
+   :target: https://pypi.org/project/google-cloud-error-reporting/
+.. |versions| image:: https://img.shields.io/pypi/pyversions/google-cloud-error-reporting.svg
+   :target: https://pypi.org/project/google-cloud-error-reporting/
+.. _Error Reporting API: https://cloud.google.com/error-reporting
+.. _Client Library Documentation: https://cloud.google.com/python/docs/reference/clouderrorreporting/latest/summary_overview
+.. _Product Documentation:  https://cloud.google.com/error-reporting
+
+Quick Start
+-----------
+
+In order to use this library, you first need to go through the following steps:
+
+1. `Select or create a Cloud Platform project.`_
+2. `Enable billing for your project.`_
+3. `Enable the Error Reporting API.`_
+4. `Set up Authentication.`_
+
+.. _Select or create a Cloud Platform project.: https://console.cloud.google.com/project
+.. _Enable billing for your project.: https://cloud.google.com/billing/docs/how-to/modify-project#enable_billing_for_a_project
+.. _Enable the Error Reporting API.:  https://cloud.google.com/error-reporting
+.. _Set up Authentication.: https://googleapis.dev/python/google-api-core/latest/auth.html
+
+Installation
+~~~~~~~~~~~~
+
+Install this library in a virtual environment using `venv`_. `venv`_ is a tool that
+creates isolated Python environments. These isolated environments can have separate
+versions of Python packages, which allows you to isolate one project's dependencies
+from the dependencies of other projects.
+
+With `venv`_, it's possible to install this library without needing system
+install permissions, and without clashing with the installed system
+dependencies.
+
+.. _`venv`: https://docs.python.org/3/library/venv.html
+
+
+Code samples and snippets
+~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Code samples and snippets live in the `samples/`_ folder.
+
+.. _samples/: https://github.com/googleapis/python-error-reporting/tree/main/samples
+
+
+Supported Python Versions
+^^^^^^^^^^^^^^^^^^^^^^^^^
+Our client libraries are compatible with all current `active`_ and `maintenance`_ versions of
+Python.
+
+Python >= 3.7, including 3.14
+
+.. _active: https://devguide.python.org/devcycle/#in-development-main-branch
+.. _maintenance: https://devguide.python.org/devcycle/#maintenance-branches
+
+Unsupported Python Versions
+^^^^^^^^^^^^^^^^^^^^^^^^^^^
+Python <= 3.6
+
+If you are using an `end-of-life`_
+version of Python, we recommend that you update as soon as possible to an actively supported version.
+
+.. _end-of-life: https://devguide.python.org/devcycle/#end-of-life-branches
+
+Mac/Linux
+^^^^^^^^^
+
+.. code-block:: console
+
+    python3 -m venv <your-env>
+    source <your-env>/bin/activate
+    pip install google-cloud-error-reporting
+
+
+Windows
+^^^^^^^
+
+.. code-block:: console
+
+    py -m venv <your-env>
+    .\<your-env>\Scripts\activate
+    pip install google-cloud-error-reporting
+
+Next Steps
+~~~~~~~~~~
+
+-  Read the `Client Library Documentation`_ for Error Reporting API
+   to see other available methods on the client.
+-  Read the `Error Reporting API Product documentation`_ to learn
+   more about the product and see How-to Guides.
+-  View this `README`_ to see the full list of Cloud
+   APIs that we cover.
+
+.. _Error Reporting API Product documentation:  https://cloud.google.com/error-reporting
+.. _README: https://github.com/googleapis/google-cloud-python/blob/main/README.rst
+
+Logging
+-------
+
+This library uses the standard Python :code:`logging` functionality to log some RPC events that could be of interest for debugging and monitoring purposes.
+Note the following:
+
+#. Logs may contain sensitive information. Take care to **restrict access to the logs** if they are saved, whether it be on local storage or on Google Cloud Logging.
+#. Google may refine the occurrence, level, and content of various log messages in this library without flagging such changes as breaking. **Do not depend on immutability of the logging events**.
+#. By default, the logging events from this library are not handled. You must **explicitly configure log handling** using one of the mechanisms below.
+
+Simple, environment-based configuration
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+To enable logging for this library without any changes in your code, set the :code:`GOOGLE_SDK_PYTHON_LOGGING_SCOPE` environment variable to a valid Google
+logging scope. This configures handling of logging events (at level :code:`logging.DEBUG` or higher) from this library in a default manner, emitting the logged
+messages in a structured format. It does not currently allow customizing the logging levels captured nor the handlers, formatters, etc. used for any logging
+event.
+
+A logging scope is a period-separated namespace that begins with :code:`google`, identifying the Python module or package to log.
+
+- Valid logging scopes: :code:`google`, :code:`google.cloud.asset.v1`, :code:`google.api`, :code:`google.auth`, etc.
+- Invalid logging scopes: :code:`foo`, :code:`123`, etc.
+
+**NOTE**: If the logging scope is invalid, the library does not set up any logging handlers.
+
+Environment-Based Examples
+^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+- Enabling the default handler for all Google-based loggers
+
+.. code-block:: console
+
+    export GOOGLE_SDK_PYTHON_LOGGING_SCOPE=google
+
+- Enabling the default handler for a specific Google module (for a client library called :code:`library_v1`):
+
+.. code-block:: console
+
+    export GOOGLE_SDK_PYTHON_LOGGING_SCOPE=google.cloud.library_v1
+
+
+Advanced, code-based configuration
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+You can also configure a valid logging scope using Python's standard `logging` mechanism.
+
+Code-Based Examples
+^^^^^^^^^^^^^^^^^^^
+
+- Configuring a handler for all Google-based loggers
+
+.. code-block:: python
+
+    import logging
+    
+    from google.cloud import library_v1
+    
+    base_logger = logging.getLogger("google")
+    base_logger.addHandler(logging.StreamHandler())
+    base_logger.setLevel(logging.DEBUG)
+
+- Configuring a handler for a specific Google module (for a client library called :code:`library_v1`):
+
+.. code-block:: python
+
+    import logging
+    
+    from google.cloud import library_v1
+    
+    base_logger = logging.getLogger("google.cloud.library_v1")
+    base_logger.addHandler(logging.StreamHandler())
+    base_logger.setLevel(logging.DEBUG)
+
+Logging details
+~~~~~~~~~~~~~~~
+
+#. Regardless of which of the mechanisms above you use to configure logging for this library, by default logging events are not propagated up to the root
+   logger from the `google`-level logger. If you need the events to be propagated to the root logger, you must explicitly set
+   :code:`logging.getLogger("google").propagate = True` in your code.
+#. You can mix the different logging configurations above for different Google modules. For example, you may want use a code-based logging configuration for
+   one library, but decide you need to also set up environment-based logging configuration for another library.
+
+   #. If you attempt to use both code-based and environment-based configuration for the same module, the environment-based configuration will be ineffectual
+      if the code -based configuration gets applied first.
+
+#. The Google-specific logging configurations (default handlers for environment-based configuration; not propagating logging events to the root logger) get
+   executed the first time *any* client library is instantiated in your application, and only if the affected loggers have not been previously configured.
+   (This is the reason for 2.i. above.)
diff --git a/docs/_templates/layout.html b/docs/_templates/layout.html
index 6316a537..95e9c77f 100644
--- a/docs/_templates/layout.html
+++ b/docs/_templates/layout.html
@@ -20,8 +20,8 @@
           {% endblock %}
 
           <div class="body" role="main">
-          	<div class="admonition" id="python2-eol"> 
-          	 As of January 1, 2020 this library no longer supports Python 2 on the latest released version. 
+          	<div class="admonition" id="python2-eol">
+          	 As of January 1, 2020 this library no longer supports Python 2 on the latest released version.
           	 Library versions released prior to that date will continue to be available. For more information please
           	 visit <a href="https://cloud.google.com/python/docs/python2-sunset/">Python 2 support on Google Cloud</a>.
           	</div>
diff --git a/google/cloud/errorreporting_v1beta1/gapic_version.py b/google/cloud/errorreporting_v1beta1/gapic_version.py
index 1fc1b24b..4cccf771 100644
--- a/google/cloud/errorreporting_v1beta1/gapic_version.py
+++ b/google/cloud/errorreporting_v1beta1/gapic_version.py
@@ -1,5 +1,5 @@
 # -*- coding: utf-8 -*-
-# Copyright 2022 Google LLC
+# Copyright 2025 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/owlbot.py b/owlbot.py
index c45fc6bf..76977beb 100644
--- a/owlbot.py
+++ b/owlbot.py
@@ -38,12 +38,12 @@
     s.move(
         [library],
         excludes=[
-            "**/gapic_version.py",
             "docs/index.rst",
             "google/cloud/errorreporting/",
             "setup.py",
             "testing/constraints-3.7.txt",
             "testing/constraints-3.8.txt",
+            "noxfile.py",
         ],
     )
 s.remove_staging_dirs()
@@ -56,14 +56,14 @@
     cov_level=100,
     microgenerator=True,
     versions=gcp.common.detect_versions(path="./google", default_first=True),
-    default_python_version="3.14"
 )
 s.move(
     templated_files,
     excludes=[
         ".coveragerc",
-        ".github/release-please.yml",
-        ".github/auto-label.yaml",
+        ".github/**",
+        ".kokoro/**",
+        "docs/conf.py",
         "docs/index.rst",
         "testing/constraints-3.7.txt",
     ],
@@ -74,20 +74,3 @@
 # run format session for all directories which have a noxfile
 for noxfile in Path(".").glob("**/noxfile.py"):
     s.shell.run(["nox", "-s", "blacken"], cwd=noxfile.parent, hide_output=False)
-
-# --------------------------------------------------------------------------
-# Modify test configs
-# --------------------------------------------------------------------------
-
-# add shared environment variables to test configs
-tracked_subdirs = ["continuous", "presubmit", "samples"]
-for subdir in tracked_subdirs:
-    for path, subdirs, files in os.walk(f".kokoro/{subdir}"):
-        for name in files:
-            if name == "common.cfg":
-                file_path = os.path.join(path, name)
-                s.move(
-                    ".kokoro/common_env_vars.cfg",
-                    file_path,
-                    merge=lambda src, dst, _,: f"{dst}\n{src}",
-                )
diff --git a/release-please-config.json b/release-please-config.json
deleted file mode 100644
index 27b697b9..00000000
--- a/release-please-config.json
+++ /dev/null
@@ -1,24 +0,0 @@
-{
-    "$schema": "https://raw.githubusercontent.com/googleapis/release-please/main/schemas/config.json",
-    "packages": {
-      ".": {
-        "release-type": "python",
-        "extra-files": [
-          "google/cloud/error_reporting/gapic_version.py",
-          "google/cloud/errorreporting_v1beta1/gapic_version.py",
-          {
-            "type": "json",
-            "path": "samples/generated_samples/snippet_metadata_google.devtools.clouderrorreporting.v1beta1.json",
-            "jsonpath": "$.clientLibrary.version"
-          }
-        ]
-      }
-    },
-    "release-type": "python",
-    "plugins": [
-      {
-        "type": "sentence-case"
-      }
-    ],
-    "initial-version": "0.1.0"
-}