* Por exemplo, `await myfile.seek(0)` irá para o início do arquivo.
    * Isso é especialmente útil se você executar `await myfile.read()` uma vez e precisar ler o conteúdo novamente.
* `close()`: Fecha o arquivo.

Como todos esses métodos são métodos `assíncronos`, você precisa "aguardar" por eles.

Por exemplo, dentro de uma função de *operação de rota* `assíncrona`, você pode obter o conteúdo com:

```Python

}

func veeamSOSAPIHeadObject(ctx context.Context, bucket, object string, opts ObjectOptions) (ObjectInfo, error) {
	gr, err := veeamSOSAPIGetObject(ctx, bucket, object, nil, opts)
	if gr != nil {
		gr.Close()
		return gr.ObjInfo, nil
	}
	return ObjectInfo{}, err
}

func veeamSOSAPIGetObject(ctx context.Context, bucket, object string, rs *HTTPRangeSpec, opts ObjectOptions) (gr *GetObjectReader, err error) {

					dest := db.Statement.Dest
					db.Statement.Dest = db.Statement.ReflectValue.Addr().Interface()
					gorm.Scan(rows, db, mode)
					db.Statement.Dest = dest
					db.AddError(rows.Close())

					if db.Statement.Result != nil {
						db.Statement.Result.RowsAffected = db.RowsAffected
					}
				}
			} else {

    private
    fun getExecutedTaskPaths(projectPath: String) = projectPathToExecutedTaskPaths.getOrDefault(projectPath, emptyList())

    override fun close() {
        val projectPathToLeftoverFiles = mutableMapOf<String, LeftoverFiles>()
        // First run: delete any temporary directories used to extract resources from jars

			if err != nil {
				logger.FatalIf(err, "Unable to get free port for Console UI on the host")
			}
			// hold the port
			l, err := net.Listen("TCP", fmt.Sprintf(":%s", p.String()))
			if err == nil {
				defer l.Close()
			}
			consoleAddr = net.JoinHostPort("", p.String())
		}

		if _, _, err := net.SplitHostPort(consoleAddr); err != nil {
			logger.FatalIf(err, "Unable to start listening on console port")
		}

		if *updateGolden {
			os.Remove(goldenFile)
			f, err := os.Create(goldenFile)
			if err != nil {
				t.Fatal(err)
			}
			for _, feat := range w.Features() {
				fmt.Fprintf(f, "%s\n", feat)
			}
			f.Close()
		}

		bs, err := os.ReadFile(goldenFile)
		if err != nil {
			t.Fatalf("opening golden.txt for package %q: %v", fi.Name(), err)
		}
		wanted := strings.Split(string(bs), "\n")
		slices.Sort(wanted)

**FastAPI** est totalement basé sur ces annotations de type, qui lui donnent de nombreux avantages.

Mais même si vous n'utilisez pas ou n'utiliserez jamais **FastAPI**, vous pourriez bénéficier d'apprendre quelques choses sur ces dernières.

/// note

Si vous êtes un expert Python, et que vous savez déjà **tout** sur les annotations de type, passez au chapitre suivant.

///

## Motivations

Prenons un exemple simple :

	return accessKey, secretKey, nil
}

// GenerateAccessKey returns a new access key generated randomly using
// the given io.Reader. If random is nil, crypto/rand.Reader is used.
// If length <= 0, the access key length is chosen automatically.
//
// GenerateAccessKey returns an error if length is too small for a valid
// access key.
func GenerateAccessKey(length int, random io.Reader) (string, error) {
	if random == nil {

	if tmpfile, err = os.CreateTemp(t.TempDir(), prefix); err != nil {
		return tempFile, err
	}

	if _, err = tmpfile.Write([]byte(content)); err != nil {
		return tempFile, err
	}

	if err = tmpfile.Close(); err != nil {
		return tempFile, err
	}

	tempFile = tmpfile.Name()
	return tempFile, err
}

func TestParsePublicCertFile(t *testing.T) {
	tempFile1, err := createTempFile(t, "public-cert-file", "")

    protected String artifactId;
    protected String version;
    protected String type;
    protected ArtifactScopeEnum artifactScope;
    protected String classifier;

    /**
     * explanation: why this MD was chosen over its siblings
     * in the resulting structure (classpath for now)
     */
    protected String why;

    /** dependencies of the artifact behind this metadata */