# Contributing to the Gradle Build Tool

Thank you for your interest in contributing to Gradle!
This guide explains how to contribute to the core Gradle components, 
extensions and documentation located in this repository.
For other extensions and components, see the 
[Gradle Community Resources](https://gradle.org/resources/).

This guide will help you to...

* maximize the chance of your changes being accepted
* work on the Gradle code base

      MockResponse(
        code = 503,
        headers = headersOf("Retry-After", "0"),
        body = "please retry",
      ),
    )
    server.enqueue(
      MockResponse(body = "thank you for retrying"),
    )
    val request =
      Request(
        url = server.url("/"),
        body =
          object : RequestBody() {
            var attempt = 0

And as you can have parallelism and asynchronicity at the same time, you get higher performance than most of the tested NodeJS frameworks and on par with Go, which is a compiled language closer to C <a href="https://www.techempower.com/benchmarks/#section=data-r17&hw=ph&test=query&l=zijmkf-1" class="external-link" target="_blank">(all thanks to Starlette)</a>.

### Is concurrency better than parallelism?

Nope! That's not the moral of the story.

       *
       * Similarly, do we really want to log the same Error more than once?
       */
      log(throwable);
    }
  }

  private static void log(Throwable throwable) {
    String message =
        (throwable instanceof Error)
            ? "Input Future failed with Error"
            : "Got more than one input Future failure. Logging failures after the first";

  // think tip it over into being worthwhile.
  public static <T extends @Nullable Object, S extends T> Comparator<Iterable<S>> lexicographical(
      Comparator<T> comparator) {
    return new LexicographicalOrdering<S>(checkNotNull(comparator));
  }

  /**
   * Returns {@code true} if each element in {@code iterable} after the first is greater than or

  // think tip it over into being worthwhile.
  public static <T extends @Nullable Object, S extends T> Comparator<Iterable<S>> lexicographical(
      Comparator<T> comparator) {
    return new LexicographicalOrdering<S>(checkNotNull(comparator));
  }

  /**
   * Returns {@code true} if each element in {@code iterable} after the first is greater than or

# Body - Nested Models

With **FastAPI**, you can define, validate, document, and use arbitrarily deeply nested models (thanks to Pydantic).

## List fields

You can define an attribute to be a subtype. For example, a Python `list`:

=== "Python 3.10+"

    ```Python hl_lines="12"
    {!> ../../../docs_src/body_nested_models/tutorial001_py310.py!}
    ```

=== "Python 3.8+"

    ```Python hl_lines="14"

      boolean isPossibleChainingCall = interfaceType.isAssignableFrom(method.getReturnType());
      try {
        Object actualReturnValue = method.invoke(wrapper, passedArgs);
        // If we think this might be a 'chaining' call then we allow the return value to either
        // be the wrapper or the returnValue.
        if (!isPossibleChainingCall || wrapper != actualReturnValue) {
          assertEquals(

      boolean isPossibleChainingCall = interfaceType.isAssignableFrom(method.getReturnType());
      try {
        Object actualReturnValue = method.invoke(wrapper, passedArgs);
        // If we think this might be a 'chaining' call then we allow the return value to either
        // be the wrapper or the returnValue.
        if (!isPossibleChainingCall || wrapper != actualReturnValue) {
          assertEquals(

* More advanced (but equally easy) techniques for declaring **deeply nested JSON models** (thanks to Pydantic).
* **GraphQL** integration with <a href="https://strawberry.rocks" class="external-link" target="_blank">Strawberry</a> and other libraries.
* Many extra features (thanks to Starlette) as:
    * **WebSockets**
    * extremely easy tests based on HTTPX and `pytest`
    * **CORS**