### Recap

In summary, you declare **once** the types of parameters, body, etc. as function parameters.

You do that with standard modern Python types.

You don't have to learn a new syntax, the methods or classes of a specific library, etc.

Just standard **Python**.

For example, for an `int`:

```Python
item_id: int
```

or for a more complex `Item` model:

```Python
item: Item
```

 *   <li>graphs whose nodes/edges are insertion-ordered, sorted, or unordered
 *   <li>graphs whose edges are unique objects
 * </ul>
 *
 * <h3>Building a {@code Network}</h3>
 *
 * <p>The implementation classes that {@code common.graph} provides are not public, by design. To
 * create an instance of one of the built-in implementations of {@code Network}, use the {@link
 * NetworkBuilder} class:
 *
 * <pre>{@code

/**
 * Static methods pertaining to ASCII characters (those in the range of values {@code 0x00} through
 * {@code 0x7F}), and to strings containing such characters.
 *
 * <p>ASCII utilities also exist in other classes of this package:
 *
 * <ul>
 *   <!-- TODO(kevinb): how can we make this not produce a warning when building gwt javadoc? -->
 *   <li>{@link StandardCharsets#US_ASCII} specifies the {@code Charset} of ASCII characters.

     * @param flags Flags that control the behavior of the operation. When all
     * name associated with SIDs will be required, the SID_FLAG_RESOLVE_SIDS
     * flag should be used which causes all group member SIDs to be resolved
     * together in a single more efficient operation.
     */
    static Map getLocalGroupsMap(String authorityServerName,
                    NtlmPasswordAuthentication auth,

Mas ele foi criado antes da existência do _type hints_ do Python. Então, para definir todo o <abbr title="definição de como os dados devem ser formados">_schema_</abbr> você precisa utilizar específicas ferramentas e classes fornecidas pelo Marshmallow.

/// check | "**FastAPI** inspirado para"

Usar código para definir "schemas" que forneçam, automaticamente, tipos de dados e validação.

///

    encoding bodies (`FormEncodingBuilder`).

## Version 2.0.0-RC1

_2014-05-23_

OkHttp 2 is designed around a new API that is true to HTTP, with classes for
requests, responses, headers, and calls. It uses modern Java patterns like
immutability and chained builders. The API now offers asynchronous callbacks
in addition to synchronous blocking calls.

#### API Changes

		HTTPStatusCode: http.StatusBadRequest,
	},
	ErrParseExpectedWhenClause: {
		Code:           "ParseExpectedWhenClause",
		Description:    "Did not find the expected WHEN clause in the SQL expression. CASE is not supported.",
		HTTPStatusCode: http.StatusBadRequest,
	},
	ErrParseUnsupportedToken: {
		Code:           "ParseUnsupportedToken",

    } catch (InvocationTargetException e) {
      throwIfUnchecked(e.getCause());
      // This should be impossible: `currentRequestThreadFactory` has no `throws` clause.
      throw new UndeclaredThrowableException(e.getCause());
    }
  }

  @J2ktIncompatible
  @GwtIncompatible // TODO
  private static boolean isAppEngineWithApiClasses() {

* 🔧 Add CryptAPI sponsor. PR [#4264](https://github.com/tiangolo/fastapi/pull/4264) by [@tiangolo](https://github.com/tiangolo).
* 📝 Update `docs/tutorial/dependencies/classes-as-dependencies`: Add type of query parameters in a description of `Classes as dependencies`. PR [#4015](https://github.com/tiangolo/fastapi/pull/4015) by [@0417taehyun](https://github.com/0417taehyun).

	// the format is explicitly chosen.
	// This ensures nominal usage of WriteHeader (without specifying the format)
	// does not always result in the PAX format being chosen, which
	// causes a 1KiB increase to every header.
	if tw.hdr.Format == FormatUnknown {
		tw.hdr.ModTime = tw.hdr.ModTime.Round(time.Second)
		tw.hdr.AccessTime = time.Time{}
		tw.hdr.ChangeTime = time.Time{}
	}