It receives a `dict`: the keys are status codes for each response (like `200`), and the values are other `dict`s with the information for each of them.

Each of those response `dict`s can have a key `model`, containing a Pydantic model, just like `response_model`.

**FastAPI** will take that model, generate its JSON Schema and include it in the correct place in OpenAPI.

    }

    /**
     * Gets the model name.
     *
     * @return the model name
     */
    public String getModel() {
        return model;
    }

    /**
     * Sets the model name.
     *
     * @param model the model name
     * @return this request for method chaining
     */
    public LlmChatRequest setModel(final String model) {
        this.model = model;
        return this;

### 文件中的輸入模型 { #input-model-in-docs }

你可以在文件中確認，`description` 欄位沒有紅色星號，表示不是必填：

<div class="screenshot">
<img src="/img/tutorial/separate-openapi-schemas/image01.png">
</div>

### 輸出用模型 { #model-for-output }

但如果你把同一個模型用作輸出，如下所示：

{* ../../docs_src/separate_openapi_schemas/tutorial001_py310.py hl[19] *}

...由於 `description` 有預設值，就算你沒有為該欄位回傳任何內容，它仍會有那個預設值。

### 輸出回應資料的模型 { #model-for-output-response-data }

事实上，在某些情况下，对于同一个 Pydantic 模型，OpenAPI 中会根据是否带有**默认值**，为输入和输出分别生成**两个 JSON Schema**。

我们来看看它如何工作，以及在需要时如何修改。

## 用于输入和输出的 Pydantic 模型 { #pydantic-models-for-input-and-output }

假设你有一个带有默认值的 Pydantic 模型，例如：

{* ../../docs_src/separate_openapi_schemas/tutorial001_py310.py ln[1:7] hl[7] *}

### 输入用的模型 { #model-for-input }

如果你像下面这样把该模型用作输入：

{* ../../docs_src/separate_openapi_schemas/tutorial001_py310.py ln[1:15] hl[14] *}

        <artifactId>modello-maven-plugin</artifactId>
        <configuration>
          <version>1.2.0</version>
          <models>
            <model>src/main/mdo/core-extensions.mdo</model>
          </models>
          <templates>
            <template>model.vm</template>
          </templates>
          <params>
            <param>locationTracking=true</param>

/**
 * A test which demonstrates maven's recursive inheritance where
 * a distinct value is taken from each parent contributing to
 * the final model of the project being assembled. There is no
 * overriding going on amongst the models being used in this test:
 * each model in the lineage is providing a value that is not present
 * anywhere else in the lineage. We are just making sure that values

/**
 * A test which demonstrates maven's recursive inheritance where
 * a distinct value is taken from each parent contributing to
 * the final model of the project being assembled. There is no
 * overriding going on amongst the models being used in this test:
 * each model in the lineage is providing a value that is not present
 * anywhere else in the lineage. We are just making sure that values

 */
package org.apache.maven.model.composition;

import javax.inject.Named;
import javax.inject.Singleton;

import java.util.ArrayList;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;

import org.apache.maven.model.Dependency;
import org.apache.maven.model.DependencyManagement;
import org.apache.maven.model.Model;
import org.apache.maven.model.building.ModelBuildingRequest;

Розгляньмо, як це працює, і як це змінити за потреби.

## Моделі Pydantic для введення та виведення { #pydantic-models-for-input-and-output }

Припустімо, у вас є модель Pydantic зі значеннями за замовчуванням, наприклад:

{* ../../docs_src/separate_openapi_schemas/tutorial001_py310.py ln[1:7] hl[7] *}

### Модель для введення { #model-for-input }

Якщо ви використовуєте цю модель як введення, як тут:

 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.model.building;

/**
 * Caches auxiliary data used during model building like already processed raw/effective models. The data in the cache
 * is meant for exclusive consumption by the model builder and is opaque to the cache implementation. The cache key is