It is a plug-in for many frameworks (and there's a plug-in for Starlette too).

The way it works is that you write the definition of the schema using YAML format inside the docstring of each function handling a route.

And it generates OpenAPI schemas.

That's how it works in Flask, Starlette, Responder, etc.

But then, we have again the problem of having a micro-syntax, inside of a Python string (a big YAML).

## Version 4.6.0

_2020-04-28_

 *  Fix: Follow HTTP 307 and 308 redirects on methods other than GET and POST. We're reluctant to
    change OkHttp's behavior in handling common HTTP status codes, but this fix is overdue! The new
    behavior is now consistent with [RFC 7231][rfc_7231_647], which is newer than OkHttp itself.

- Bump debian-base to v1.0.1 and debian-iptables to v11.0.3 ([#88882](https://github.com/kubernetes/kubernetes/pull/88882), [@tallclair](https://github.com/tallclair)) [SIG API Machinery, Cluster Lifecycle, Release and Testing]

     *
     * @param scrollSize The scroll size.
     */
    public void setScrollSize(final int scrollSize) {
        this.scrollSize = scrollSize;
    }

    /**
     * Converter for handling timestamps in OpenSearch.
     */
    protected static class EsTimestampConverter implements Converter {
        /**
         * Creates a new instance of EsTimestampConverter.
         */

                In FastAPI, you would normally use the decorator
                `@app.exception_handler()`.

                Read more in the
                [FastAPI docs for Handling Errors](https://fastapi.tiangolo.com/tutorial/handling-errors/).
                """
            ),
        ] = None,
        on_startup: Annotated[
            Optional[Sequence[Callable[[], Any]]],
            Doc(
                """

		xioutil.SafeClose(worker)
	}
}

// ActiveWorkers returns the number of active workers handling replication traffic.
func (p *ReplicationPool) ActiveWorkers() int {
	return int(atomic.LoadInt32(&p.activeWorkers))
}

// ActiveMRFWorkers returns the number of active workers handling replication failures.
func (p *ReplicationPool) ActiveMRFWorkers() int {
	return int(atomic.LoadInt32(&p.activeMRFWorkers))

 * This abstract class provides the fundamental structure and common functionality for SMB1 request
 * and response messages, including header fields, message encoding/decoding, and wire format handling.
 */
public abstract class ServerMessageBlock implements CommonServerMessageBlockRequest, CommonServerMessageBlockResponse, RequestWithPath {

But it makes working with asynchronous code a lot easier.

This same syntax (or almost identical) was also included recently in modern versions of JavaScript (in Browser and NodeJS).

But before that, handling asynchronous code was quite more complex and difficult.

  //     Ordering.<String>natural().lexicographical();
  public <S extends T> Ordering<Iterable<S>> lexicographical() {
    /*
     * Note that technically the returned ordering should be capable of
     * handling not just {@code Iterable<S>} instances, but also any {@code
     * Iterable<? extends S>}. However, the need for this comes up so rarely
     * that it doesn't justify making everyone else deal with the very ugly
     * wildcard.

* apiserver: fixes handling and logging of panics in REST handlers to prevent crashes ([#71076](https://github.com/kubernetes/kubernetes/pull/71076), [@liggitt](https://github.com/liggitt))