* Преобразование данных
* Валидацию данных
* Автоматическую документацию

## Особые типы и валидация

Помимо обычных простых типов, таких как `str`, `int`, `float`, и т.д. Вы можете использовать более сложные базовые типы, которые наследуются от типа `str`.

        "name": "The Foo live"
    }
}
```

다시 한번, **FastAPI**를 사용하여 해당 선언을 함으로써 얻는 것은:

* 중첩 모델도 편집기 지원(자동완성 등)
* 데이터 변환
* 데이터 검증
* 자동 문서화

## 특별한 타입과 검증

`str`, `int`, `float` 등과 같은 단일 타입과는 별개로, `str`을 상속하는 더 복잡한 단일 타입을 사용할 수 있습니다.

모든 옵션을 보려면, <a href="https://docs.pydantic.dev/latest/concepts/types/" class="external-link" target="_blank">Pydantic's exotic types</a> 문서를 확인하세요. 다음 장에서 몇가지 예제를 볼 수 있습니다.

* Editor support (completion, etc.), even for nested models
* Data conversion
* Data validation
* Automatic documentation

## Special types and validation

Apart from normal singular types like `str`, `int`, `float`, etc. you can use more complex singular types that inherit from `str`.

					err = z.Flags.Filter.DecodeMsg(dc)
					if err != nil {
						err = msgp.WrapError(err, "Flags", "Filter")
						return
					}
				case "Notify":
					err = z.Flags.Notify.DecodeMsg(dc)
					if err != nil {
						err = msgp.WrapError(err, "Flags", "Notify")
						return
					}
				case "Retry":
					err = z.Flags.Retry.DecodeMsg(dc)
					if err != nil {

	}
	return func(r *rand.Rand, attempt uint) time.Duration {
		sleep := min
		sleep += unit * time.Duration(attempt)
		if sleep > cap {
			sleep = cap
		}
		sleep -= time.Duration(r.Float64() * float64(sleep))
		return sleep
	}

  @Override
  void writeShort(int v);

  @Override
  void writeChar(int v);

  @Override
  void writeInt(int v);

  @Override
  void writeLong(long v);

  @Override
  void writeFloat(float v);

  @Override
  void writeDouble(double v);

  @Override
  void writeChars(String s);

  @Override
  void writeUTF(String s);

  /**

/**
 * @author higa
 *
 */
public class FloatConversionUtilTest extends TestCase {

    /**
     * @throws Exception
     */
    public void testToFloat() throws Exception {
        assertEquals(new Float("1000.5"), FloatConversionUtil.toFloat("1,000.5"));
    }

    /**
     * @throws Exception
     */
    public void testToPrimitiveFloat() throws Exception {

    public SuggestRequestBuilder setSuggestDetail(final boolean suggestDetail) {
        request.setSuggestDetail(suggestDetail);
        return this;
    }

    public SuggestRequestBuilder setPrefixMatchWeight(final float prefixMatchWeight) {
        request.setPrefixMatchWeight(prefixMatchWeight);
        return this;
    }

    public SuggestRequestBuilder setMatchWordFirst(final boolean matchWordFirst) {

    private int flags;


    /**
     * Returns the flags currently in use for this message.
     *
     * @return An <code>int</code> containing the flags in use for this
     *         message.
     */
    public int getFlags () {
        return this.flags;
    }


    /**
     * Sets the flags for this message.
     *
     * @param flags
     *            The flags for this message.

from typing import List, Optional

from fastapi import FastAPI
from fastapi.testclient import TestClient
from pydantic import BaseModel

app = FastAPI()


class Item(BaseModel):
    name: str
    price: Optional[float] = None
    owner_ids: Optional[List[int]] = None


@app.get("/items/valid", response_model=Item)
def get_valid():
    return {"name": "valid", "price": 1.0}


@app.get("/items/coerce", response_model=Item)