🌾 💲 ⚫️❔ 💉 🔘 *➡ 🛠️* & 🎏 🔗:

{* ../../docs_src/dependencies/tutorial007.py hl[4] *}

📟 📄 `yield` 📄 🛠️ ⏮️ 📨 ✔️ 🚚:

{* ../../docs_src/dependencies/tutorial007.py hl[5:6] *}

/// tip

👆 💪 ⚙️ `async` ⚖️ 😐 🔢.

**FastAPI** 🔜 ▶️️ 👜 ⏮️ 🔠, 🎏 ⏮️ 😐 🔗.

///

## 🔗 ⏮️ `yield` & `try`

🚥 👆 ⚙️ `try` 🍫 🔗 ⏮️ `yield`, 👆 🔜 📨 🙆 ⚠ 👈 🚮 🕐❔ ⚙️ 🔗.

// along with this program.  If not, see <http://www.gnu.org/licenses/>.

//go:generate msgp -file=$GOFILE

package cmd

import (
	"context"
	"encoding/binary"
	"errors"
	"fmt"
	"io"
	"sync"
	"sync/atomic"
	"time"

	"github.com/google/uuid"
	"github.com/minio/madmin-go/v3"
	"github.com/minio/pkg/v3/wildcard"
	"github.com/tinylib/msgp/msgp"
)

const (
	mrfOpsQueueSize = 100000
)

<details markdown="1">
<summary>Tàbí lò <code>async def</code>...</summary>

Tí kóòdù rẹ̀ bá ń lò `async` / `await`, lò `async def`:

```Python hl_lines="9  14"
from typing import Union

from fastapi import FastAPI

app = FastAPI()


@app.get("/")
async def read_root():
    return {"Hello": "World"}


@app.get("/items/{item_id}")
async def read_item(item_id: int, q: Union[str, None] = None):

// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package cmd

import (
	"container/ring"
	"context"
	"io"
	"sync"
	"sync/atomic"

	"github.com/minio/madmin-go/v3"
	"github.com/minio/madmin-go/v3/logger/log"
	"github.com/minio/minio/internal/logger"
	"github.com/minio/minio/internal/logger/target/console"

//// tab | Python 3.6+

```Python hl_lines="1"
async def needy_dependency(fresh_value: Annotated[str, Depends(get_value, use_cache=False)]):
    return {"fresh_value": fresh_value}
```

////

//// tab | Python 3.6+ без Annotated

/// tip | Подсказка

Предпочтительнее использовать версию с аннотацией, если это возможно.

///

```Python hl_lines="1"

// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package cmd

import (
	"context"
	"errors"
	"fmt"
	"io"
	"sync"
	"sync/atomic"

	xioutil "github.com/minio/minio/internal/ioutil"
)

// Reads in parallel from readers.
type parallelReader struct {
	readers       []io.ReaderAt
	orgReaders    []io.ReaderAt
	dataBlocks    int

// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package cmd

import (
	"sync"

	"github.com/minio/minio/internal/config/ilm"
)

var globalILMConfig = ilmConfig{
	cfg: ilm.Config{
		ExpirationWorkers: 100,
		TransitionWorkers: 100,
	},
}

type ilmConfig struct {
	mu  sync.RWMutex
	cfg ilm.Config
}

func (c *ilmConfig) getExpirationWorkers() int {
	c.mu.RLock()

Это совершенно обычная функция, которая может принимать параметры.

Она может быть как асинхронной `async def`, так и обычной `def` функцией, **FastAPI** знает, как правильно ее выполнить.

В нашем примере фоновая задача будет вести запись в файл (симулируя отправку письма).

Так как операция записи не использует `async` и `await`, мы определим ее как обычную `def`:

{* ../../docs_src/background_tasks/tutorial001.py hl[6:9] *}

}

// Parse get data type from dialector
func Parse(dest interface{}, cacheStore *sync.Map, namer Namer) (*Schema, error) {
	return ParseWithSpecialTableName(dest, cacheStore, namer, "")
}

// ParseWithSpecialTableName get data type from dialector with extra schema table
func ParseWithSpecialTableName(dest interface{}, cacheStore *sync.Map, namer Namer, specialTableName string) (*Schema, error) {
	if dest == nil {

	"github.com/minio/minio/internal/logger"
	"github.com/minio/pkg/v3/policy"
	"github.com/minio/pkg/v3/sync/errgroup"
	"golang.org/x/sync/singleflight"
)

// BucketMetadataSys captures all bucket metadata for a given cluster.
type BucketMetadataSys struct {
	objAPI ObjectLayer

	sync.RWMutex
	initialized bool
	group       *singleflight.Group
	metadataMap map[string]BucketMetadata
}