* o modelo
* o modelo Pydantic
* o modelo de dados
* o modelo de banco de dados
* o modelo de formulário
* o objeto de modelo

* a classe
* a classe base
* a classe pai
* a subclasse
* a classe filha
* a classe irmã
* o método de classe

* o cabeçalho
* os cabeçalhos
* o cabeçalho de autorização
* o cabeçalho `Authorization`
* o cabeçalho encaminhado

		t.Fatalf("Build OR condition, but got %v", result.Statement.SQL.String())
	}

	sub := dryDB.Clauses(clause.Where{
		Exprs: []clause.Expression{
			clause.OrConditions{
				Exprs: []clause.Expression{
					clause.Expr{SQL: "role = ?", Vars: []interface{}{"super_admin"}},
					clause.Expr{SQL: "role = ?", Vars: []interface{}{"admin"}},
				},
			},
		},
	})
	result = dryDB.Where(sub).Find(&User{})

Contributor. If that Commercial Contributor then makes performance
claims, or offers warranties related to Product X, those performance
claims and warranties are such Commercial Contributor's responsibility
alone. Under this section, the Commercial Contributor would have to
defend claims against the other Contributors related to those performance
claims and warranties, and if a court requires any other Contributor to

		OtherID: "1234",
		Data:    "something",
	}

	DB.Create(&thing)

	thing2 := Thing{
		SomeID:  "1234",
		OtherID: "1234",
		Data:    "something else",
	}

	result := DB.Clauses(clause.OnConflict{
		OnConstraint: "some_id_other_id_unique",
		UpdateAll:    true,
	}).Create(&thing2)
	if result.Error != nil {
		t.Errorf("creating second thing: %v", result.Error)
	}

	var things []Thing

		OtherID: "1234",
		Data:    "something",
	}

	DB.Create(&thing)

	thing2 := Thing{
		SomeID:  "1234",
		OtherID: "1234",
		Data:    "something else",
	}

	result := DB.Clauses(clause.OnConflict{
		OnConstraint: "some_id_other_id_unique",
		UpdateAll:    true,
	}).Create(&thing2)
	if result.Error != nil {
		t.Errorf("creating second thing: %v", result.Error)
	}

	var things []Thing

* <a href="https://github.com/encode/uvicorn/blob/master/uvicorn/middleware/proxy_headers.py" class="external-link" target="_blank">Uvicorn's `ProxyHeadersMiddleware`</a>
* <a href="https://github.com/florimondmanca/msgpack-asgi" class="external-link" target="_blank">MessagePack</a>

///

////

//// tab | Pydantic v1

{* ../../docs_src/settings/app03_an_py39/config_pv1.py hl[9:10] *}

/// tip | Dica

## Détails techniques

La classe `BackgroundTasks` provient directement de <a href="https://www.starlette.dev/background/" class="external-link" target="_blank">`starlette.background`</a>.

* <a href="https://strawberry.rocks/" class="external-link" target="_blank">Strawberry</a> 🍓
    * Com <a href="https://strawberry.rocks/docs/integrations/fastapi" class="external-link" target="_blank">docs para FastAPI</a>
* <a href="https://ariadnegraphql.org/" class="external-link" target="_blank">Ariadne</a>
    * Com <a href="https://ariadnegraphql.org/docs/fastapi-integration" class="external-link" target="_blank">docs para FastAPI</a>

	newDB := DB.Session(&gorm.Session{NewDB: true, DryRun: true}).Table("users")

	newDB.Clauses(
		clause.From{
			Tables: []clause.Table{{Name: "users"}},
			Joins: []clause.Join{
				{
					Table: clause.Table{Name: "companies", Raw: false},
					ON: clause.Where{
						Exprs: []clause.Expression{
							clause.Eq{
								Column: clause.Column{
									Table: "users",
									Name:  "company_id",
								},