* Tareas en segundo plano en el mismo proceso.
* Eventos de inicio y apagado.
* Cliente de prueba basado en HTTPX.
* **CORS**, GZip, archivos estáticos, responses en streaming.
* Soporte para **Session y Cookie**.
* Cobertura de tests del 100%.
* Código completamente anotado con tipos.

## Funcionalidades de Pydantic

            assertFalse(isValid, "Tampered data should fail verification");
        }

        @Test
        @DisplayName("Should handle different session keys")
        void testDifferentSessionKeys() throws GeneralSecurityException {
            byte[] sessionKey1 = new byte[16];
            Arrays.fill(sessionKey1, (byte) 0x11);

### 📦 📄

👆 🔜 🛎 ✔️ **📦 📄** 👆 🈸 📁.

⚫️ 🔜 🪀 ✴️ 🔛 🧰 👆 ⚙️ **❎** 👈 📄.

🌅 ⚠ 🌌 ⚫️ ✔️ 📁 `requirements.txt` ⏮️ 📦 📛 & 👫 ⏬, 1️⃣ 📍 ⏸.

👆 🔜 ↗️ ⚙️ 🎏 💭 👆 ✍ [🔃 FastAPI ⏬](versions.md){.internal-link target=_blank} ⚒ ↔ ⏬.

🖼, 👆 `requirements.txt` 💪 👀 💖:

```
fastapi>=0.68.0,<0.69.0
pydantic>=1.8.0,<2.0.0
uvicorn>=0.15.0,<0.16.0
```

pkg encoding/json, method (Number) Int64() (int64, error)
pkg encoding/json, method (Number) String() string
pkg encoding/json, type Number string
pkg encoding/xml, const Header = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
pkg encoding/xml, func EscapeText(io.Writer, []uint8) error
pkg encoding/xml, method (*Encoder) Indent(string, string)
pkg encoding/xml, type Decoder struct, DefaultSpace string

        // Message ID
        SMBUtil.writeInt8(1, buffer, headerStart + 24);
        // Reserved/Async ID
        SMBUtil.writeInt8(0, buffer, headerStart + 32);
        // Session ID
        SMBUtil.writeInt8(0, buffer, headerStart + 40);
        // Signature
        Arrays.fill(buffer, headerStart + 48, headerStart + 64, (byte) 0);

        // Write READ response body

	}
	if !slices.IsSorted(indices) {
		t.Fatal("PAX headers are not sorted")
	}
}

func TestUSTARLongName(t *testing.T) {
	// Create an archive with a path that failed to split with USTAR extension in previous versions.
	fileinfo, err := os.Stat("testdata/small.txt")
	if err != nil {
		t.Fatal(err)
	}
	hdr, err := FileInfoHeader(fileinfo, "")
	if err != nil {
		t.Fatalf("os.Stat:1 %v", err)
	}

    Note over dep: Run code up to yield
    opt raise Exception
        dep -->> handler: Raise Exception
        handler -->> client: HTTP error response
    end
    dep ->> operation: Run dependency, e.g. DB session
    opt raise
        operation -->> dep: Raise Exception (e.g. HTTPException)
        opt handle
            dep -->> dep: Can catch exception, raise a new HTTPException, raise other exception
        end

#### Nieuwere versies van Python

De syntax met `typing` is **verenigbaar** met alle versies, van Python 3.6 tot aan de nieuwste, inclusief Python 3.9, Python 3.10, enz.

-	 && *__s != __accept3)
-    ++__s;
-  return *__s == '\0' ? NULL : (char *) (size_t) __s;
-}
-#endif
-
-
-/* Find the first occurrence of NEEDLE in HAYSTACK.  Newer gcc versions
-   do this itself.  */
-#if !defined _HAVE_STRING_ARCH_strstr && !__GNUC_PREREQ (2, 97)
-# define strstr(haystack, needle) \
-  (__extension__ (__builtin_constant_p (needle) && __string2_1bptr_p (needle) \

Чаще всего это простой файл `requirements.txt` с построчным перечислением библиотек и их версий.

При этом Вы, для выбора версий, будете использовать те же идеи, что упомянуты на странице [О версиях FastAPI](versions.md){.internal-link target=_blank}.

Ваш файл `requirements.txt` может выглядеть как-то так:

```
fastapi>=0.68.0,<0.69.0
pydantic>=1.8.0,<2.0.0
uvicorn>=0.15.0,<0.16.0
```