FastAPI позволяет использовать **аннотации типов** таким же способом, как и для ввода данных в  **параметры** функции, вы можете использовать модели Pydantic, списки, словари, скалярные типы (такие, как int, bool и т.д.).

//// tab | Python 3.10+

```Python hl_lines="16  21"
{!> ../../docs_src/response_model/tutorial001_01_py310.py!}
```

////

//// tab | Python 3.9+

```Python hl_lines="18  23"

	}

	cancel()
	return nil
}

//msgp:ignore batchKeyRotationJobError
type batchKeyRotationJobError struct {
	Code           string
	Description    string
	HTTPStatusCode int
}

func (e batchKeyRotationJobError) Error() string {
	return e.Description
}

// Validate validates the job definition input

#### 使用 `list`

你也可以直接使用 `list` 代替 `List [str]`：

```Python hl_lines="7"
{!../../docs_src/query_params_str_validations/tutorial013.py!}
```

/// note

请记住，在这种情况下 FastAPI 将不会检查列表的内容。

例如，`List[int]` 将检查（并记录到文档）列表的内容必须是整数。但是单独的 `list` 不会。

///

## 声明更多元数据

你可以添加更多有关该参数的信息。

这些信息将包含在生成的 OpenAPI 模式中，并由文档用户界面和外部工具所使用。

/// note

请记住，不同的工具对 OpenAPI 的支持程度可能不同。

    suite.addTestSuite(LinkedHashMultimapTest.class);
    return suite;
  }

  public void testValueSetHashTableExpansion() {
    LinkedHashMultimap<String, Integer> multimap = LinkedHashMultimap.create();
    for (int z = 1; z <= 100; z++) {
      multimap.put("a", z);
      // The Eclipse compiler (and hence GWT) rejects a parameterized cast.
      @SuppressWarnings("unchecked")
      LinkedHashMultimap<String, Integer>.ValueSet valueSet =

  // +optional
  repeated string dryRun = 5;
}

// Duration is a wrapper around time.Duration which supports correct
// marshaling to YAML and JSON. In particular, it marshals into strings, which
// can be used as map keys in json.
message Duration {
  optional int64 duration = 1;
}

// FieldsV1 stores a set of fields in a data structure like a Trie, in JSON format.
//

   * in which it will attempt to cancel itself.
   *
   * <p>An example use of this method is to convert a serializable object returned from an RPC into
   * a POJO.
   *
   * <p>This method is similar to {@link java.util.concurrent.CompletableFuture#thenApply} and
   * {@link java.util.concurrent.CompletableFuture#thenApplyAsync}. It can also serve some of the

     explicitly and finally terminates Your grants, and (b) on an ongoing basis,
     if such Contributor fails to notify You of the non-compliance by some
     reasonable means prior to 60 days after You have come back into compliance.
     Moreover, Your grants from a particular Contributor are reinstated on an
     ongoing basis if such Contributor notifies You of the non-compliance by

     explicitly and finally terminates Your grants, and (b) on an ongoing
     basis, if such Contributor fails to notify You of the non-compliance by
     some reasonable means prior to 60 days after You have come back into
     compliance. Moreover, Your grants from a particular Contributor are
     reinstated on an ongoing basis if such Contributor notifies You of the
     non-compliance by some reasonable means, this is the first time You have

}

// isHTTPHeaderSizeTooLarge returns true if the provided
// header is larger than 8 KB or the user-defined metadata
// is larger than 2 KB.
func isHTTPHeaderSizeTooLarge(header http.Header) bool {
	var size, usersize int
	for key := range header {
		length := len(key) + len(header.Get(key))
		size += length
		for _, prefix := range userMetadataKeyPrefixes {
			if stringsHasPrefixFold(key, prefix) {
				usersize += length
				break

    private static final long serialVersionUID = 0x150ddL;

    @Override
    public boolean apply(@Nullable Integer i) {
      return (i.intValue() & 1) == 1;
    }

    @Override
    public int hashCode() {
      return 0x150dd;
    }

    @Override
    public boolean equals(@Nullable Object obj) {
      return obj instanceof IsOdd;
    }

    @Override
    public String toString() {