* <p>
 * It is an error for a {@code @Model} rule to return {@code void} and specify a non-managed type as the first parameter.
 * It is an error for a {@code @Model} rule to return {@code void} and for the first parameter to be annotated with {@link Path}.
 * It is an error for a {@code @Model} rule to specify a managed type as the return type.

 * <h3>Creating non-managed model elements</h3>
 * <p>

package gateway

import (
	corev1 "k8s.io/api/core/v1"
	k8s "sigs.k8s.io/gateway-api/apis/v1alpha2"

	"istio.io/istio/pilot/pkg/credentials"
	"istio.io/istio/pilot/pkg/model"
	creds "istio.io/istio/pilot/pkg/model/credentials"
	"istio.io/istio/pkg/config"
	"istio.io/istio/pkg/config/schema/gvk"
	"istio.io/istio/pkg/util/sets"
)

const (
	gatewayAliasForAnnotationKey = "gateway.istio.io/alias-for"

But if we use the same model for another *path operation*, we could be sending our user's passwords to every client.

!!! danger
    Never store the plain password of a user or send it in a response like this, unless you know all the caveats and you know what you are doing.

## Add an output model

We can instead create an input model with the plaintext password and an output model without it:

=== "Python 3.10+"

  specific language governing permissions and limitations
  under the License.
*#
#parse ( "common.vm" )
#
#set ( $package = "${packageModelV4}" )
#set ( $root = $model.getClass( $model.getRoot($version), $version ) )
#foreach ( $class in $model.allClasses )
  #set ( $ancestors = $Helper.ancestors( $class ) )
  #set ( $allFields = [] )
  #set ( $inheritedFields = [] )
  #foreach ( $cl in $ancestors )
    #if ( $cl != $class )

import org.apache.maven.api.xml.XmlNode;
#foreach ( $class in $model.allClasses )
import ${packageModelV4}.${class.Name};
#end

@Generated
public class ${className} {

    public String getModelVersion(${root.name} model) {
        Objects.requireNonNull(model, "model cannot be null");

#set ( $String = $model.getClass().forName("java.lang.String") )
#set ( $Comparator = $model.getClass().forName("java.util.Comparator") )

        <field>
          <name>project</name>
          <version>1.0.0</version>
          <description>Snippets of POM xml files used to supplement the data model.</description>
          <type>DOM</type>
        </field>
      </fields>
    </class>
  </classes>

## 在文档中查看

当你查看自动化文档时，你可以检查输入模型和输出模型是否都具有自己的 JSON Schema：

<img src="https://fastapi.tiangolo.com/img/tutorial/response-model/image01.png">

并且两种模型都将在交互式 API 文档中使用：

<img src="https://fastapi.tiangolo.com/img/tutorial/response-model/image02.png">

## 响应模型编码参数

你的响应模型可以具有默认值，例如：

```Python hl_lines="11  13-14"
{!../../../docs_src/response_model/tutorial004.py!}
```

John Howard <******@****.***> 1641342165 -0800

John Howard <******@****.***> 1708715901 -0800

component-model-maven.png...