from typing import Optional

from pydantic import BaseModel


class User(BaseModel):
    name: str

from pydantic import BaseModel

app = FastAPI()


class Item(BaseModel):
    name: str
    price: float
    is_offer: bool = None


@app.get("/")
def read_root():
    return {"Hello": "World"}


@app.get("/items/{item_id}")
def read_item(item_id: int, q: str = None):
    return {"item_id": item_id, "q": q}


@app.put("/items/{item_id}")

    }

    static String unescape(String str) throws NumberFormatException, UnsupportedEncodingException {
        char ch;
        int i, j, state, len;
        char[] out;
        byte[] b = new byte[1];

        if (str == null) {
            return null;
        }

        len = str.length();
        out = new char[len];
        state = 0;

from fastapi import FastAPI

app = FastAPI()


@app.get("/files/{file_path:path}")
async def read_file(file_path: str):

    return mod.html


@pytest.fixture(name="client")
def get_client(mod: ModuleType):
    client = TestClient(mod.app)

    return client


def test_get(client: TestClient, html: str):
    response = client.get("/")
    assert response.text == html


def test_websocket_handle_disconnection(client: TestClient):
    with (
        client.websocket_connect("/ws/1234") as connection,

    ],
)
def get_mod_path(request: pytest.FixtureRequest):
    mod_path = f"docs_src.settings.{request.param}"
    return mod_path


@pytest.fixture(name="main_mod")
def get_main_mod(mod_path: str) -> ModuleType:
    main_mod = importlib.import_module(f"{mod_path}.main")
    return main_mod


def test_settings(main_mod: ModuleType, monkeypatch: MonkeyPatch):
    monkeypatch.setenv("ADMIN_EMAIL", "******@****.***")

			}
		}

		str := getUserAgent(testCase.mode)
		expectedStr := testCase.expectedStr
		if IsDocker() {
			expectedStr = strings.ReplaceAll(expectedStr, "; source", "; docker; source")
		}
		if !strings.Contains(str, expectedStr) {
			t.Errorf("Test %d: expected: %s, got: %s", i+1, expectedStr, str)
		}
		os.Unsetenv("MARATHON_APP_LABEL_DCOS_PACKAGE_VERSION")

from fastapi import FastAPI, Request

app = FastAPI()


@app.get("/items/{item_id}")
def read_root(item_id: str, request: Request):
    client_host = request.client.host

## Classes as dependencies { #classes-as-dependencies_1 }

You might notice that to create an instance of a Python class, you use that same syntax.

For example:

```Python
class Cat:
    def __init__(self, name: str):
        self.name = name


fluffy = Cat(name="Mr Fluffy")
```

In this case, `fluffy` is an instance of the class `Cat`.

And to create `fluffy`, you are "calling" `Cat`.

Você deve ter percebido que para criar um instância de uma classe em Python, a mesma sintaxe é utilizada.

Por exemplo:

```Python
class Cat:
    def __init__(self, name: str):
        self.name = name


fluffy = Cat(name="Mr Fluffy")
```

Nesse caso,  `fluffy` é uma instância da classe `Cat`.

E para criar `fluffy`, você está "chamando" `Cat`.