from pydantic.v1 import BaseModel


class Item(BaseModel):
    name: str
    description: str | None = None

```Python hl_lines="3  5-6"
{
    "name": "Baz",
    "description": None,
    "price": 50.2,
    "tax": 10.5,
    "tags": []
}
```

FastAPI is smart enough (actually, Pydantic is smart enough) to realize that, even though `description`, `tax`, and `tags` have the same values as the defaults, they were set explicitly (instead of taken from the defaults).

```Python hl_lines="3  5-6"
{
    "name": "Baz",
    "description": None,
    "price": 50.2,
    "tax": 10.5,
    "tags": []
}
```

O FastAPI é inteligente o suficiente (na verdade, o Pydantic é inteligente o suficiente) para perceber que, embora `description`, `tax` e `tags` tenham os mesmos valores que os padrões, eles foram definidos explicitamente (em vez de retirados dos padrões).

	}

	// Help for Identity Plugin
	Help = config.HelpKVS{
		config.HelpKV{
			Key:         URL,
			Description: `plugin hook endpoint (HTTP(S)) e.g. "http://localhost:8181/path/to/endpoint"` + defaultHelpPostfix(URL),
			Type:        "url",
		},
		config.HelpKV{
			Key:         AuthToken,
			Description: "authorization token for plugin hook endpoint" + defaultHelpPostfix(AuthToken),
			Optional:    true,
			Type:        "string",

        group = "verification"
        description = "Runs the cross-version tests against all Gradle versions with 'forking' executer"
    }

    val quickFeedbackCrossVersionTests = tasks.register("quickFeedbackCrossVersionTests") {
        group = "verification"

		Hidden: true,
	},
}

// Help template for minio.
var minioHelpTemplate = `NAME:
  {{.Name}} - {{.Usage}}

DESCRIPTION:
  {{.Description}}

USAGE:
  {{.HelpName}} {{if .VisibleFlags}}[FLAGS] {{end}}COMMAND{{if .VisibleFlags}}{{end}} [ARGS...]

COMMANDS:
  {{range .VisibleCommands}}{{join .Names ", "}}{{ "\t" }}{{.Usage}}

{
    "responses": {
        "404": {
            "description": "Additional Response",
            "content": {
                "application/json": {
                    "schema": {
                        "$ref": "#/components/schemas/Message"
                    }
                }
            }
        },
        "200": {
            "description": "Successful Response",
            "content": {

    <version>999.0.0-HEAD-android-SNAPSHOT</version>
  </parent>
  <artifactId>guava-testlib</artifactId>
  <name>Guava Testing Library</name>
  <description>
    Guava testlib is a set of java classes used for more convenient
    unit testing - particularly to assist the tests for Guava itself.
  </description>
  <dependencies>
    <dependency>
      <groupId>org.jspecify</groupId>
      <artifactId>jspecify</artifactId>
    </dependency>

{
    "name": "Bar",
    "description": "The bartenders",
    "price": 62,
    "tax": 20.2
}
```

这些值将包含在响应中。

#### 具有与默认值相同值的数据

如果数据具有与默认值相同的值，例如 ID 为 `baz` 的项：

```Python hl_lines="3  5-6"
{
    "name": "Baz",
    "description": None,
    "price": 50.2,
    "tax": 10.5,
    "tags": []
}
```

            "Integer", 0, 0, null, null, false, null, null, null, null, null, false);
    protected final ColumnInfo _columnDescription = cci("description", "description", null, null, String.class, "description", null, false,
            false, false, "text", 0, 0, null, null, false, null, null, null, null, null, false);