「デコレータ」を含まない（`@app.get("/some-path")`を含まない）*path operation関数*と考えることもできます。

そして何でも返すことができます。

この場合、この依存関係は以下を期待しています:

* オプショナルのクエリパラメータ`q`は`str`です。
* オプショナルのクエリパラメータ`skip`は`int`で、デフォルトは`0`です。
* オプショナルのクエリパラメータ`limit`は`int`で、デフォルトは`100`です。

そして、これらの値を含む`dict`を返します。

### `Depends`のインポート

```Python hl_lines="3"
{!../../docs_src/dependencies/tutorial001.py!}
```

### "dependant"での依存関係の宣言

				sum += r[i].Size
			}
			return ObjectInfo{
				Size:        sum,
				UserDefined: udMap(true),
				Parts:       r,
			}
		}
		// Simple useful utilities
		repeat = func(k int64, n int) []int64 {
			a := []int64{}
			for i := 0; i < n; i++ {
				a = append(a, k)
			}
			return a
		}
		lsum = func(s []int64) int64 {
			sum := int64(0)
			for _, i := range s {
				if i < 0 {

And the part after the `yield` will be executed **after** the application has finished.

### Async Context Manager

If you check, the function is decorated with an `@asynccontextmanager`.

That converts the function into something called an "**async context manager**".

{* ../../docs_src/events/tutorial003.py hl[1,13] *}

    @Override
    protected SearchResult search(final String query, final SearchRequestParams params, final OptionalThing<FessUserBean> userBean) {
        final int pageSize = params.getPageSize();
        LaRequestUtil.getOptionalRequest().ifPresent(request -> {
            request.setAttribute(Constants.REQUEST_PAGE_SIZE, pageSize);
        });

        self.name = name


class Pet:
    def __init__(self, owner: Person, name: str):
        self.owner = owner
        self.name = name


@dataclass
class Item:
    name: str
    count: int


class DictablePerson(Person):
    def __iter__(self):
        return ((k, v) for k, v in self.__dict__.items())


class DictablePet(Pet):
    def __iter__(self):

	Name  string
	Code  string
	Price int64
	Owner string
	Item  ProductItem
}

type ProductItem struct {
	gorm.Model
	Code               string
	Product4ID         uint
	AfterFindCallTimes int
}

func (pi ProductItem) BeforeCreate(*gorm.DB) error {
	if pi.Code == "invalid" {
		return errors.New("invalid item")
	}
	return nil
}

func (pi *ProductItem) AfterFind(*gorm.DB) error {

### **4.2 WordCount**

WordCount is a simple program that counts how often a word occurs in a text file. The code builds a dataset of (String, Int) pairs called counts, and saves the dataset to a file.

The following example submits WordCount code to the Scala shell. Select an input file for the Spark WordCount example. We can use any text file as input.

    builder.put("bb", 3);
    builder.put("d", 2);
    builder.put("a", 5);
    builder.orderKeysBy(
        new Ordering<String>() {
          @Override
          public int compare(String left, String right) {
            return left.length() - right.length();
          }
        });
    builder.put("cc", 4);
    builder.put("a", 2);
    builder.put("bb", 6);

    assertTrue(multimap.isEmpty());

    ImmutableMultimap<Integer, String> single =
        new ImmutableMultimap.Builder<Integer, String>().put(1, "one").put(2, "two").build();

    // copy into existing multimap
    assertSame(multimap, Multimaps.invertFrom(single, multimap));

    ImmutableMultimap<String, Integer> expected =

	UploadID string `xml:"UploadId"`

	Initiator Initiator
	Owner     Owner

	// The class of storage used to store the object.
	StorageClass string

	PartNumberMarker     int
	NextPartNumberMarker int
	MaxParts             int
	IsTruncated          bool

	ChecksumAlgorithm string
	// List of parts.
	Parts []Part `xml:"Part"`
}