{* ../../docs_src/first_steps/tutorial001_py39.py hl[3] *}

Aquí la variable `app` será una "instance" de la clase `FastAPI`.

Este será el punto principal de interacción para crear toda tu API.

### Paso 3: crea una *path operation* { #step-3-create-a-path-operation }

#### Path { #path }

"Path" aquí se refiere a la última parte de la URL empezando desde la primera `/`.

ACCEPTED

## Consequences

* We are incurring debt that will need to be paid later via deprecations or breaking changes to existing classes. The implementation for some Gradle types will be more complicated than an equivalent clean-sheet implementation.
* During code reviews that introduce new APIs, reviewers need to be mindful that all new properties are implemented with lazy types.

* Si te sientes muy generoso, puedes intentar **crear un ejemplo** así tú mismo, solo basado en la descripción del problema. Solo ten en cuenta que esto podría llevar mucho tiempo y podría ser mejor pedirles que aclaren el problema primero.

### Sugerir soluciones { #suggest-solutions }

	ahs.Lock()
	defer ahs.Unlock()

	for _, ep := range healLocalDisks {
		ahs.healLocalDisks[ep] = false
	}
}

func (ahs *allHealState) periodicHealSeqsClean(ctx context.Context) {
	// Launch clean-up routine to remove this heal sequence (after
	// it ends) from the global state after timeout has elapsed.
	periodicTimer := time.NewTimer(time.Minute * 5)
	defer periodicTimer.Stop()

	for {
		select {

        MavenExecutionRequest mavenExecutionRequest = new DefaultMavenExecutionRequest();
        mavenExecutionRequest.setExecutionListener(new AbstractExecutionListener());
        mavenExecutionRequest.setGoals(Arrays.asList("clean", "aggr", "install"));
        mavenExecutionRequest.setDegreeOfConcurrency(1);
        final MavenSession session = new MavenSession(null, null, mavenExecutionRequest, defaultMavenExecutionResult);

		*outReq = *quietReq
	}
}

// headerRewriter is responsible for removing hop-by-hop headers and setting forwarding headers
type headerRewriter struct{}

// Clean up IP in case if it is ipv6 address and it has {zone} information in it, like
// "[fe80::d806:a55d:eb1b:49cc%vEthernet (vmxnet3 Ethernet Adapter - Virtual Switch)]:64692"
func ipv6fix(clientIP string) string {

	abs := math.Abs(f)
	fmt := byte('f')
	if abs != 0 {
		if abs < 1e-6 || abs >= 1e21 {
			fmt = 'e'
		}
	}
	dst = strconv.AppendFloat(dst, f, fmt, -1, 64)
	if fmt == 'e' {
		// clean up e-09 to e-9
		n := len(dst)
		if n >= 4 && dst[n-4] == 'e' && dst[n-3] == '-' && dst[n-2] == '0' {
			dst[n-2] = dst[n-1]
			dst = dst[:n-1]
		}
	}
	return string(dst)

   *     for `hostname`.
   */
  @Throws(SSLPeerUnverifiedException::class)
  fun check(
    hostname: String,
    peerCertificates: List<Certificate>,
  ) = check(hostname) {
    (certificateChainCleaner?.clean(peerCertificates, hostname) ?: peerCertificates)
      .map { it as X509Certificate }
  }

  internal fun check(
    hostname: String,
    cleanedPeerCertificatesFn: () -> List<X509Certificate>,
  ) {

       "  Write-Error 'Error: Failed to validate Maven wrapper SHA-256, your Maven wrapper might be compromised.';"^
       "  Write-Error 'Investigate or delete %WRAPPER_JAR% to attempt a clean download.';"^
       "  Write-Error 'If you updated your Maven version, you need to update the specified wrapperSha256Sum property.';"^
       "  exit 1;"^
       "}"^
       "}"
    if ERRORLEVEL 1 goto error
)

   * <p>Note: in principle this should never need to be used, but it might be useful if the
   * semantics of an implementation disagree in unforeseen ways with the semantics expected by a
   * test, or to keep dependent builds clean in spite of an erroneous test.
   */
  @CanIgnoreReturnValue
  public B suppressing(Method... methods) {
    return suppressing(asList(methods));
  }

  @CanIgnoreReturnValue