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vendor/google/gax/README.md

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+# Google API Core for PHP
+
+![Build Status](https://github.com/googleapis/gax-php/actions/workflows/tests.yml/badge.svg)
+
+-   [Documentation](https://cloud.google.com/php/docs/reference/gax/latest)
+
+Google API Core for PHP (gax-php) is a set of modules which aids the development
+of APIs for clients based on [gRPC][] and Google API conventions.
+
+Application code will rarely need to use most of the classes within this library
+directly, but code generated automatically from the API definition files in
+[Google APIs][] can use services such as page streaming and retry to provide a
+more convenient and idiomatic API surface to callers.
+
+[gRPC]: http://grpc.io
+[Google APIs]: https://github.com/googleapis/googleapis/
+
+## PHP Versions
+
+gax-php currently requires PHP 8.1 or higher.
+
+## Contributing
+
+Contributions to this library are always welcome and highly encouraged.
+
+See the [CONTRIBUTING][] documentation for more information on how to get
+started.
+
+[CONTRIBUTING]: https://github.com/googleapis/gax-php/blob/main/.github/CONTRIBUTING.md
+
+## Versioning
+
+This library follows [Semantic Versioning][].
+
+This library is considered GA (generally available). As such, it will not
+introduce backwards-incompatible changes in any minor or patch releases. We will
+address issues and requests with the highest priority.
+
+[Semantic Versioning]: http://semver.org/
+
+## Repository Structure
+
+All code lives under the src/ directory. Handwritten code lives in the
+src/ApiCore directory and is contained in the `Google\ApiCore` namespace.
+
+Generated classes for protobuf common types and LongRunning client live under
+the src/ directory, in the appropriate directory and namespace.
+
+Code in the metadata/ directory is provided to support generated protobuf
+classes, and should not be used directly.
+
+## Development Set-Up
+
+These steps describe the dependencies to install for Linux, and equivalents can
+be found for Mac or Windows.
+
+1.  Install dependencies.
+
+    ```sh
+    > cd ~/
+    > sudo apt-get install php php-dev libcurl3-openssl-dev php-pear php-bcmath php-xml
+    > curl -sS https://getcomposer.org/installer | php
+    > sudo pecl install protobuf
+    ```
+
+2.  Set up this repo.
+
+    ```sh
+    > cd /path/to/gax-php
+    > composer install
+    ```
+
+3.  Run tests.
+
+    ```sh
+    > composer test
+    ```
+
+4.  Updating dependencies after changing `composer.json`:
+
+    ```sh
+    > composer update
+    `
+    ```
+
+5.  Formatting source:
+
+    ```sh
+    > composer cs-lint
+    > composer cs-fix
+    ```
+
+## License
+
+BSD - See [LICENSE][] for more information.
+
+[LICENSE]: https://github.com/googleapis/gax-php/blob/main/LICENSE