// the file it describes, it may be necessary to modify the Name field
// of the returned header to provide the full path name of the file.
// If compression is desired, callers should set the FileHeader.Method
// field; it is unset by default.
func FileInfoHeader(fi fs.FileInfo) (*FileHeader, error) {
	size := fi.Size()
	fh := &FileHeader{
		Name:               fi.Name(),
		UncompressedSize64: uint64(size),
	}
	fh.SetModTime(fi.ModTime())

		gorootPath = runtime.GOROOT()
		if gorootPath != "" {
			return
		}

		// runtime.GOROOT is empty — perhaps go_android_exec was built with
		// -trimpath and GOROOT is unset. Try 'go env GOROOT' as a fallback,
		// assuming that the 'go' command in $PATH is the correct one.

		cmd := exec.Command("go", "env", "GOROOT")
		cmd.Stderr = os.Stderr
		out, err := cmd.Output()
		if err != nil {

### Use the `response_model_exclude_unset` parameter { #use-the-response-model-exclude-unset-parameter }

You can set the *path operation decorator* parameter `response_model_exclude_unset=True`:

{* ../../docs_src/response_model/tutorial004_py310.py hl[22] *}

### Use o parâmetro `response_model_exclude_unset` { #use-the-response-model-exclude-unset-parameter }

Você pode definir o parâmetro `response_model_exclude_unset=True` do *decorador de operação de rota*:

{* ../../docs_src/response_model/tutorial004_py310.py hl[22] *}

## Ausführung von Abhängigkeiten mit `yield` { #execution-of-dependencies-with-yield }

Die Ausführungsreihenfolge ähnelt mehr oder weniger dem folgenden Diagramm. Die Zeit verläuft von oben nach unten. Und jede Spalte ist einer der interagierenden oder Code-ausführenden Teilnehmer.

```mermaid
sequenceDiagram

participant client as Client
participant handler as Exceptionhandler

### Используйте параметр `response_model_exclude_unset` { #use-the-response-model-exclude-unset-parameter }

Вы можете установить у *декоратора операции пути* параметр `response_model_exclude_unset=True`:

{* ../../docs_src/response_model/tutorial004_py310.py hl[22] *}

                    if (downloadMonitor != null) {
                        wagon.addTransferListener(downloadMonitor);
                    }
                }

                // unset the firstRun flag, so we don't get caught in an infinite loop...
                firstRun = false;
            }
        } catch (ConnectionException e) {

/// tip | Tipp

Für neuen Code und wann immer es möglich ist, verwenden Sie `Annotated` wie oben erklärt. Es gibt mehrere Vorteile (unten erläutert) und keine Nachteile. 🍰

///

So würden Sie `Query()` als den Defaultwert Ihres Funktionsparameters verwenden und den Parameter `max_length` auf 50 setzen:

burgers = get_burgers(2)
```

---

Así que, si estás usando un paquete que te dice que puedes llamarlo con `await`, necesitas crear las *path operation functions* que lo usen con `async def`, como en:

```Python hl_lines="2-3"
@app.get('/burgers')
async def read_burgers():
    burgers = await get_burgers(2)
    return burgers
```

    assertThat(cookie.domain).isEqualTo("example.com")
    assertThat(cookie.path).isEqualTo("/")
    assertThat(cookie.secure).isFalse()
    assertThat(cookie.httpOnly).isFalse()
    // can't be unset
    assertThat(cookie.persistent).isTrue()
    assertThat(cookie.hostOnly).isFalse()
  }

  @Test fun builderNameValidation() {
    assertFailsWith<IllegalArgumentException> {
      Cookie.Builder().name(" a ")