docs: update SelectiveGapicGeneration usage doc

PiperOrigin-RevId: 892649773

Source-Link: googleapis/googleapis@06a20b2

Source-Link: googleapis/googleapis-gen@d9ae664
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Author: gcf-owl-bot[bot]

owl-bot-staging/google-cloud-apigee_connect-v1/.gitignore

@@ -0,0 +1,22 @@
+# Ignore bundler lockfiles
+Gemfile.lock
+gems.locked
+
+# Ignore documentation output
+doc/*
+.yardoc/*
+
+# Ignore test output
+coverage/*
+
+# Ignore build artifacts
+pkg/*
+
+# Ignore files commonly present in certain dev environments
+.vagrant
+.DS_STORE
+.idea
+*.iml
+
+# Ignore synth output
+__pycache__

owl-bot-staging/google-cloud-apigee_connect-v1/.repo-metadata.json

@@ -0,0 +1,18 @@
+{
+    "api_id": "apigeeconnect.googleapis.com",
+    "api_shortname": "apigeeconnect",
+    "client_documentation": "https://cloud.google.com/ruby/docs/reference/google-cloud-apigee_connect-v1/latest",
+    "distribution_name": "google-cloud-apigee_connect-v1",
+    "is_cloud": true,
+    "language": "ruby",
+    "name": "apigeeconnect",
+    "name_pretty": "Apigee Connect V1 API",
+    "product_documentation": "https://cloud.google.com/apigee/docs/hybrid/v1.4/apigee-connect",
+    "release_level": "unreleased",
+    "repo": "googleapis/google-cloud-ruby",
+    "requires_billing": true,
+    "ruby-cloud-description": "Apigee Connect allows the Apigee hybrid management plane to connect securely to the MART service in the runtime plane without requiring you to expose the MART endpoint on the internet. If you use Apigee Connect, you do not need to configure the MART ingress gateway with a host alias and an authorized DNS certificate. Note that google-cloud-apigee_connect-v1 is a version-specific client library. For most uses, we recommend installing the main client library google-cloud-apigee_connect instead. See the readme for more details.",
+    "ruby-cloud-env-prefix": "APIGEE_CONNECT",
+    "ruby-cloud-product-url": "https://cloud.google.com/apigee/docs/hybrid/v1.4/apigee-connect",
+    "library_type": "GAPIC_AUTO"
+}

owl-bot-staging/google-cloud-apigee_connect-v1/.rubocop.yml

@@ -0,0 +1,33 @@
+inherit_gem:
+  google-style: google-style.yml
+
+AllCops:
+  Exclude:
+    - "google-cloud-apigee_connect-v1.gemspec"
+    - "lib/**/*_pb.rb"
+    - "proto_docs/**/*"
+    - "test/**/*"
+    - "acceptance/**/*"
+    - "samples/acceptance/**/*"
+    - "Rakefile"
+
+Layout/LineLength:
+  Enabled: false
+Metrics/AbcSize:
+  Enabled: false
+Metrics/ClassLength:
+  Enabled: false
+Metrics/CyclomaticComplexity:
+  Enabled: false
+Metrics/MethodLength:
+  Enabled: false
+Metrics/ModuleLength:
+  Enabled: false
+Metrics/PerceivedComplexity:
+  Enabled: false
+Naming/AccessorMethodName:
+  Exclude:
+    - "snippets/**/*.rb"
+Naming/FileName:
+  Exclude:
+    - "lib/google-cloud-apigee_connect-v1.rb"

owl-bot-staging/google-cloud-apigee_connect-v1/.toys.rb

@@ -0,0 +1,28 @@
+# frozen_string_literal: true
+
+# Copyright 2026 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.
+
+# Auto-generated by gapic-generator-ruby. DO NOT EDIT!
+
+toys_version! ">= 0.15.3"
+
+if ENV["RUBY_COMMON_TOOLS"]
+  common_tools_dir = File.expand_path ENV["RUBY_COMMON_TOOLS"]
+  load File.join(common_tools_dir, "toys", "gapic")
+else
+  load_git remote: "https://github.com/googleapis/ruby-common-tools.git",
+           path: "toys/gapic",
+           update: true
+end

owl-bot-staging/google-cloud-apigee_connect-v1/.yardopts

@@ -0,0 +1,12 @@
+--no-private
+--title="Apigee Connect V1 API"
+--exclude _pb\.rb$
+--markup markdown
+--markup-provider redcarpet
+
+./lib/**/*.rb
+./proto_docs/**/*.rb
+-
+README.md
+LICENSE.md
+AUTHENTICATION.md

owl-bot-staging/google-cloud-apigee_connect-v1/AUTHENTICATION.md

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+# Authentication
+
+The recommended way to authenticate to the google-cloud-apigee_connect-v1 library is to use
+[Application Default Credentials (ADC)](https://cloud.google.com/docs/authentication/application-default-credentials).
+To review all of your authentication options, see [Credentials lookup](#credential-lookup).
+
+## Quickstart
+
+The following example shows how to set up authentication for a local development
+environment with your user credentials. 
+
+**NOTE:** This method is _not_ recommended for running in production. User credentials
+should be used only during development.
+
+1. [Download and install the Google Cloud CLI](https://cloud.google.com/sdk).
+2. Set up a local ADC file with your user credentials:
+
+```sh
+gcloud auth application-default login
+```
+
+3. Write code as if already authenticated.
+
+For more information about setting up authentication for a local development environment, see
+[Set up Application Default Credentials](https://cloud.google.com/docs/authentication/provide-credentials-adc#local-dev).
+
+## Credential Lookup
+
+The google-cloud-apigee_connect-v1 library provides several mechanisms to configure your system.
+Generally, using Application Default Credentials to facilitate automatic 
+credentials discovery is the easist method. But if you need to explicitly specify
+credentials, there are several methods available to you.
+
+Credentials are accepted in the following ways, in the following order or precedence:
+
+1. Credentials specified in method arguments
+2. Credentials specified in configuration
+3. Credentials pointed to or included in environment variables
+4. Credentials found in local ADC file
+5. Credentials returned by the metadata server for the attached service account (GCP)
+
+### Configuration
+
+You can configure a path to a JSON credentials file, either for an individual client object or
+globally, for all client objects. The JSON file can contain credentials created for
+[workload identity federation](https://cloud.google.com/iam/docs/workload-identity-federation),
+[workforce identity federation](https://cloud.google.com/iam/docs/workforce-identity-federation), or a
+[service account key](https://cloud.google.com/docs/authentication/provide-credentials-adc#local-key).
+
+Note: Service account keys are a security risk if not managed correctly. You should
+[choose a more secure alternative to service account keys](https://cloud.google.com/docs/authentication#auth-decision-tree)
+whenever possible.
+
+To configure a credentials file for an individual client initialization:
+
+```ruby
+require "google/cloud/apigee_connect/v1"
+
+client = ::Google::Cloud::ApigeeConnect::V1::ConnectionService::Client.new do |config|
+  config.credentials = "path/to/credentialfile.json"
+end
+```
+
+To configure a credentials file globally for all clients:
+
+```ruby
+require "google/cloud/apigee_connect/v1"
+
+::Google::Cloud::ApigeeConnect::V1::ConnectionService::Client.configure do |config|
+  config.credentials = "path/to/credentialfile.json"
+end
+
+client = ::Google::Cloud::ApigeeConnect::V1::ConnectionService::Client.new
+```
+
+### Environment Variables
+
+You can also use an environment variable to provide a JSON credentials file.
+The environment variable can contain a path to the credentials file or, for
+environments such as Docker containers where writing files is not encouraged,
+you can include the credentials file itself.
+
+The JSON file can contain credentials created for
+[workload identity federation](https://cloud.google.com/iam/docs/workload-identity-federation),
+[workforce identity federation](https://cloud.google.com/iam/docs/workforce-identity-federation), or a
+[service account key](https://cloud.google.com/docs/authentication/provide-credentials-adc#local-key).
+
+Note: Service account keys are a security risk if not managed correctly. You should
+[choose a more secure alternative to service account keys](https://cloud.google.com/docs/authentication#auth-decision-tree)
+whenever possible.
+
+The environment variables that google-cloud-apigee_connect-v1
+checks for credentials are:
+
+* `GOOGLE_CLOUD_CREDENTIALS` - Path to JSON file, or JSON contents
+* `GOOGLE_APPLICATION_CREDENTIALS` - Path to JSON file
+
+```ruby
+require "google/cloud/apigee_connect/v1"
+
+ENV["GOOGLE_APPLICATION_CREDENTIALS"] = "path/to/credentialfile.json"
+
+client = ::Google::Cloud::ApigeeConnect::V1::ConnectionService::Client.new
+```
+
+### Local ADC file
+
+You can set up a local ADC file with your user credentials for authentication during
+development. If credentials are not provided in code or in environment variables,
+then the local ADC credentials are discovered.
+
+Follow the steps in [Quickstart](#quickstart) to set up a local ADC file.
+
+### Google Cloud Platform environments
+
+When running on Google Cloud Platform (GCP), including Google Compute Engine
+(GCE), Google Kubernetes Engine (GKE), Google App Engine (GAE), Google Cloud
+Functions (GCF) and Cloud Run, credentials are retrieved from the attached
+service account automatically. Code should be written as if already authenticated.
+
+For more information, see
+[Set up ADC for Google Cloud services](https://cloud.google.com/docs/authentication/provide-credentials-adc#attached-sa).

owl-bot-staging/google-cloud-apigee_connect-v1/CHANGELOG.md

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+# Release History
+

owl-bot-staging/google-cloud-apigee_connect-v1/Gemfile

@@ -0,0 +1,14 @@
+source "https://rubygems.org"
+
+gemspec
+
+gem "google-style", "~> 1.32.0"
+gem "irb", "~> 1.17"
+gem "minitest", "~> 6.0.2"
+gem "minitest-focus", "~> 1.4"
+gem "minitest-mock", "~> 5.27"
+gem "minitest-rg", "~> 5.3"
+gem "ostruct", "~> 0.5.5"
+gem "rake", ">= 13.0"
+gem "redcarpet", "~> 3.6"
+gem "yard", "~> 0.9"