{* ../../docs_src/background_tasks/tutorial001_py39.py hl[1,13] *}

O **FastAPI** criará o objeto do tipo `BackgroundTasks` para você e o passará como esse parâmetro.

## Crie uma função de tarefa { #create-a-task-function }

Crie uma função para ser executada como a tarefa em segundo plano.

É apenas uma função padrão que pode receber parâmetros.

	"net/url"
	"strconv"
	"strings"
	"testing"

	"github.com/minio/minio/internal/crypto"
	"github.com/minio/minio/internal/grid"
	xhttp "github.com/minio/minio/internal/http"
)

// Tests request guess function for net/rpc requests.
func TestGuessIsRPC(t *testing.T) {
	if guessIsRPCReq(nil) {
		t.Fatal("Unexpected return for nil request")
	}

	u, err := url.Parse("http://localhost:9000/minio/lock")
	if err != nil {

	encrypt.SseCustomerKey:       true,
	encrypt.SseCustomerKeyMD5:    true,
}

// checkPostPolicy - apply policy conditions and validate input values.
// Note that content-length-range is checked in the API handler function PostPolicyBucketHandler.
// formValues is the already-canonicalized form values from the POST request.
func checkPostPolicy(formValues http.Header, postPolicyForm PostPolicyForm) error {

```
http://localhost:8000/items/?q=foo&q=bar
```

vous recevriez les valeurs des multiples paramètres de requête `q` (`foo` et `bar`) dans une `list` Python au sein de votre fonction de **path operation**, dans le paramètre de fonction `q`.

Donc la réponse de cette URL serait :

```JSON
{
  "q": [
    "foo",
    "bar"
  ]
}
```

/// tip | Astuce

import java.io.File;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.List;
import java.util.Objects;
import java.util.concurrent.atomic.AtomicReference;
import java.util.function.Supplier;

import org.apache.maven.api.services.ModelBuilderException;
import org.apache.maven.api.services.ModelSource;
import org.apache.maven.artifact.DefaultArtifact;

	// Deprecated: use B.
	A         = 1
	a         = 11
	A64 int64 = 1

	AIsLowerA = a // previously declared
)

const (
	ConversionConst = MyInt(5)
)

// Variables from function calls.
var (
	V = ptwo.F()
	// Deprecated: use WError.
	VError = BarE()
	V1     = Bar1(1, 2, 3)
	V2     = ptwo.G()
)

// Variables with conversions:
var (
	StrConv  = string("foo")

package org.apache.maven.cling.invoker;

import java.nio.file.Path;
import java.util.HashMap;
import java.util.Map;
import java.util.Optional;
import java.util.Properties;
import java.util.ServiceLoader;
import java.util.function.UnaryOperator;

import org.apache.maven.api.annotations.Nonnull;
import org.apache.maven.api.annotations.Nullable;
import org.apache.maven.api.services.Interpolator;
import org.apache.maven.api.services.model.RootLocator;

	"flag"
	"fmt"
	"hash/crc32"
	"log"
	"os"
	"strings"

	"github.com/dchest/siphash"
	"github.com/google/uuid"
)

// hashes the key returning an integer based on the input algorithm.
// This function currently supports
// - SIPMOD
func sipHashMod(key string, cardinality int, id [16]byte) int {
	if cardinality <= 0 {
		return -1
	}
	// use the faster version as per siphash docs

    QUICK_FEEDBACK_LINUX_ONLY(
        "Quick Feedback - Linux Only",
        "Run checks and functional tests (embedded executer, Linux)",
        "QuickFeedbackLinuxOnly",
    ),
    QUICK_FEEDBACK("Quick Feedback", "Run checks and functional tests (embedded executer, Windows)", "QuickFeedback"),
    PULL_REQUEST_FEEDBACK("Pull Request Feedback", "Run various functional tests", "PullRequestFeedback"),
    READY_FOR_NIGHTLY(
        "Ready for Nightly",

Guide d'utilisation** (ce que vous êtes en train de lire en ce moment).

Il est conçu pour que vous puissiez construire une application complète avec seulement le **Tutoriel - Guide d'utilisation**, puis l'étendre de différentes manières, en fonction de vos besoins, en utilisant certaines des idées supplémentaires du **Guide d'utilisation avancé**....