if err := DB.Model(&users).Association("Languages").Delete(users[0].Languages[0], users[1].Languages[1]); err != nil {
		t.Errorf("no error should happened when deleting language, but got %v", err)
	}

	AssertAssociationCount(t, users, "Languages", 2, "after delete")

	// Clear
	DB.Model(&users).Association("Languages").Clear()

	AssertEqual(t, lastUpdatedAt.UnixNano(), users[1].UpdatedAt.UnixNano())

	// user2 should not be updated
	var user1, user2 User
	DB.First(&user1, users[0].ID)
	DB.First(&user2, users[1].ID)
	CheckUser(t, user1, *users[0])
	CheckUser(t, user2, *users[1])

	DB.Model(users[1]).UpdateColumn("name", "update_column_02_newnew").UpdateColumn("age", 19)
	AssertEqual(t, lastUpdatedAt.UnixNano(), users[1].UpdatedAt.UnixNano())

app.include_router(user_router, prefix="/users")
app.include_router(item_router, prefix="/items")

app.include_router(item_router, prefix="/users/{user_id}/items")


client = TestClient(app)


def test_get_users():
    """Check that /users returns expected data"""
    response = client.get("/users")
    assert response.status_code == 200, response.text

		},
	}
	DB.Create(&user)

	type UserScan struct {
		ID        uint
		Name      string
		ManagerID *uint
	}
	var user2 UserScan
	err := DB.Raw("SELECT * FROM users INNER JOIN users Manager ON users.manager_id = Manager.id WHERE users.id = ?", user.ID).Scan(&user2).Error
	AssertEqual(t, err, nil)

from pydantic import BaseModel

app = FastAPI()

reusable_oauth2 = OAuth2(
    flows={
        "password": {
            "tokenUrl": "token",
            "scopes": {"read:users": "Read the users", "write:users": "Create users"},
        }
    },
    description="OAuth2 security scheme",
    auto_error=False,
)


class User(BaseModel):
    username: str

    response = client.get("/users/me")
    assert response.status_code == 401, response.text
    assert response.json() == {"detail": "Not authenticated"}
    assert response.headers["WWW-Authenticate"] == "Bearer"


@needs_py310
def test_token(client: TestClient):
    access_token = get_access_token(scope="me", client=client)
    response = client.get(
        "/users/me", headers={"Authorization": f"Bearer {access_token}"}

from pydantic import BaseModel

app = FastAPI()

reusable_oauth2 = OAuth2(
    flows={
        "password": {
            "tokenUrl": "token",
            "scopes": {"read:users": "Read the users", "write:users": "Create users"},
        }
    }
)


class User(BaseModel):
    username: str


# Here we use string annotations to test them
def get_current_user(oauth_header: "str" = Security(reusable_oauth2)):

	} else if len(users2) != len(users) {
		t.Fatalf("Failed to load join users, got: %v, expect: %v", len(users2), len(users))
	}

	sort.Slice(users2, func(i, j int) bool {
		return users2[i].ID > users2[j].ID
	})

	sort.Slice(users, func(i, j int) bool {
		return users[i].ID > users[j].ID
	})

	for idx, user := range users {
		// user
		CheckUser(t, user, users2[idx])

O módulo `items` terá uma variável `router` (`items.router`). Esta é a mesma que criamos no arquivo `app/routers/items.py`, é um objeto `APIRouter`.

E então fazemos o mesmo para o módulo `users`.

Também poderíamos importá-los como:

```Python
from app.routers import items, users
```

/// info | "Informação"

	)

	AssertAssociationCount(t, users, "Pets", 5, "After Append")

	// Delete
	if err := DB.Model(&users).Association("Pets").Delete(&users[2].Pets); err != nil {
		t.Errorf("no error should happened when deleting pet, but got %v", err)
	}

	AssertAssociationCount(t, users, "Pets", 4, "after delete")

	if err := DB.Model(&users).Association("Pets").Delete(users[0].Pets[0], users[1].Pets[1]); err != nil {