6. Defina o **comando** para usar `fastapi run`, que utiliza o Uvicorn por baixo dos panos.

    `CMD` recebe uma lista de strings, cada uma dessas strings é o que você digitaria na linha de comando separado por espaços.

  No covered work shall be deemed part of an effective technological
measure under any applicable law fulfilling obligations under article
11 of the WIPO copyright treaty adopted on 20 December 1996, or
similar laws prohibiting or restricting circumvention of such
measures.

  When you convey a covered work, you waive any legal power to forbid

Falcon es otro framework de Python de alto rendimiento, está diseñado para ser minimalista y funcionar como la base de otros frameworks como Hug.

![ReDoc](https://fastapi.tiangolo.com/img/index/index-02-redoc-simple.png)

## Actualización del Ejemplo { #example-upgrade }

Ahora modifica el archivo `main.py` para recibir un body desde un request `PUT`.

Declara el body usando tipos estándar de Python, gracias a Pydantic.

```Python hl_lines="4  9-12  25-27"
from typing import Union

from fastapi import FastAPI

 * weak references.
 *
 * <p><strong>Performance</strong>
 *
 * <p>The extra bookkeeping done by cycle detecting locks comes at some cost to performance.
 * Benchmarks (as of December 2011) show that:
 *
 * <ul>
 *   <li>for an unnested {@code lock()} and {@code unlock()}, a cycle detecting lock takes 38ns as
 *       opposed to the 24ns taken by a plain lock.

		e.Children = make(dataUsageHashMap, 1)
	}
	e.Children[hash.Key()] = struct{}{}
}

// Create a clone of the entry.
func (e dataUsageEntry) clone() dataUsageEntry {
	// We operate on a copy from the receiver.
	if e.Children != nil {
		ch := make(dataUsageHashMap, len(e.Children))
		maps.Copy(ch, e.Children)
		e.Children = ch
	}

	if e.AllTierStats != nil {
		e.AllTierStats = e.AllTierStats.clone()
	}

	go func() {
		st.Results(func(b []byte) error {
			close(nowBlocking)
			// Block until test is done.
			<-stopBlocking
			return nil
		})
	}()

	<-nowBlocking
	// Wait for the receiver channel to fill.
	for len(st.responses) != cap(st.responses) {
		time.Sleep(time.Millisecond)
	}
	cancel()
	<-serverCanceled
	local.debugMsg(debugIsOutgoingClosed, st.muxID, func(closed bool) {

	}
	c.outgoing.Clear()
	c.inStream.Range(func(key uint64, client *muxServer) bool {
		client.cancel()
		return true
	})
	c.inStream.Clear()
}

func (c *Connection) receive(conn net.Conn, r receiver) error {
	b, op, err := wsutil.ReadData(conn, c.side)
	if err != nil {
		return err
	}
	if op != ws.OpBinary {
		return fmt.Errorf("unexpected connect response type %v", op)
	}

		return
	}
	setEventStreamHeaders(w)

	// Trace Publisher and peer-trace-client uses nonblocking send and hence does not wait for slow receivers.
	// Keep 100k buffered channel.
	// If receiver cannot keep up with that we drop events.
	traceCh := make(chan []byte, 100000)
	peers, _ := newPeerRestClients(globalEndpoints)

				} else {
					err = errFileNotFound
				}
			}
		}
		// when we have insufficient read quorum and inconsistent metadata return
		// file not found, since we can't possibly have a way to recover this object
		// anyway.
		if v, ok := err.(InsufficientReadQuorum); ok && v.Type == RQInconsistentMeta {
			if opts.VersionID != "" {
				err = errFileVersionNotFound
			} else {
				err = errFileNotFound
			}