```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).

      int negatedCharacters = DISTINCT_CHARS - totalCharacters;
      String suffix = ".negate()";
      String description = toString();
      String negatedDescription =
          description.endsWith(suffix)
              ? description.substring(0, description.length() - suffix.length())
              : description + suffix;
      return new NegatedFastMatcher(
          precomputedPositive(negatedCharacters, table, negatedDescription)) {

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

                                            key="labels.description"/></label>
                                    <div class="col-sm-9">
                                        <la:errors property="description"/>
                                        <la:textarea styleId="description" property="description"
                                                     styleClass="form-control"

**FastAPI** suporta isso da mesma maneira que com strings simples:

{* ../../docs_src/path_operation_configuration/tutorial002b.py hl[1,8:10,13,18] *}

## Resumo e descrição

Você pode adicionar um `summary` e uma `description`:

{* ../../docs_src/path_operation_configuration/tutorial003.py hl[20:21] *}

## Descrição do docstring

            "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);

{* ../../docs_src/path_operation_advanced_configuration/tutorial003.py hl[6] *}

## Advanced description from docstring { #advanced-description-from-docstring }

You can limit the lines used from the docstring of a *path operation function* for OpenAPI.

    <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>

    <version>999.0.0-HEAD-jre-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>

```

이 경우에 **FastAPI**는 본문을 아래 대신에:

```JSON hl_lines="2"
{
    "name": "Foo",
    "description": "The pretender",
    "price": 42.0,
    "tax": 3.2
}
```

아래 처럼 예측할 것 입니다:

```JSON
{
    "item": {
        "name": "Foo",
        "description": "The pretender",
        "price": 42.0,
        "tax": 3.2
    }
}
```

## 정리