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  1. docs_src/query_params_str_validations/tutorial014_an.py

    from typing import Union
    
    from fastapi import FastAPI, Query
    from typing_extensions import Annotated
    
    app = FastAPI()
    
    
    @app.get("/items/")
    async def read_items(
        hidden_query: Annotated[Union[str, None], Query(include_in_schema=False)] = None,
    ):
        if hidden_query:
            return {"hidden_query": hidden_query}
        else:
    Python
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  2. docs/vi/docs/python-types.md

        * Giá trị của `dict` này là kiểu `float` (đó là giá của mỗi vật phẩm).
    
    #### Union
    
    Bạn có thể khai báo rằng một biến có thể là **một vài kiểu dữ liệu" bất kì, ví dụ, một `int` hoặc một `str`.
    
    Trong Python 3.6 hoặc lớn hơn (bao gồm Python 3.10) bạn có thể sử dụng kiểu `Union` từ `typing` và đặt trong dấu ngoặc vuông những giá trị được chấp nhận.
    
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  3. docs/bn/docs/python-types.md

        ```
    
    #### `Union` বা `Optional` ব্যবহার
    
    যদি আপনি Python 3.10-এর নীচের সংস্করণ ব্যবহার করেন, তবে এখানে আমার খুবই **ব্যক্তিগত** দৃষ্টিভঙ্গি থেকে একটি টিপস:
    
    * 🚨 `Optional[SomeType]` ব্যবহার এড়িয়ে চলুন।
    * এর পরিবর্তে ✨ **`Union[SomeType, None]` ব্যবহার করুন** ✨।
    
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  4. docs/ru/docs/tutorial/query-params-str-validations.md

    ```Python
    q: str
    ```
    
    вместо:
    
    ```Python
    q: Union[str, None] = None
    ```
    
    Но у нас query-параметр определён как `Query`. Например:
    
    === "Annotated"
    
        ```Python
        q: Annotated[Union[str, None], Query(min_length=3)] = None
        ```
    
    === "без Annotated"
    
        ```Python
        q: Union[str, None] = Query(default=None, min_length=3)
        ```
    
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  5. docs/em/docs/python-types.md

        ```
    
    #### ⚙️ `Union` ⚖️ `Optional`
    
    🚥 👆 ⚙️ 🐍 ⏬ 🔛 3️⃣.1️⃣0️⃣, 📥 💁‍♂ ⚪️➡️ 👇 📶 **🤔** ☝ 🎑:
    
    * 👶 ❎ ⚙️ `Optional[SomeType]`
    * ↩️ 👶 **⚙️ `Union[SomeType, None]`** 👶.
    
    👯‍♂️ 🌓 & 🔘 👫 🎏, ✋️ 👤 🔜 👍 `Union` ↩️ `Optional` ↩️ 🔤 "**📦**" 🔜 😑 🔑 👈 💲 📦, & ⚫️ 🤙 ⛓ "⚫️ 💪 `None`", 🚥 ⚫️ 🚫 📦 & ✔.
    
    👤 💭 `Union[SomeType, None]` 🌖 🔑 🔃 ⚫️❔ ⚫️ ⛓.
    
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  6. docs/de/docs/tutorial/query-params-str-validations.md

    ```Python
    q: str
    ```
    
    statt:
    
    ```Python
    q: Union[str, None] = None
    ```
    
    Aber jetzt deklarieren wir den Parameter mit `Query`, wie in:
    
    === "Annotiert"
    
        ```Python
        q: Annotated[Union[str, None], Query(min_length=3)] = None
        ```
    
    === "Nicht annotiert"
    
        ```Python
        q: Union[str, None] = Query(default=None, min_length=3)
        ```
    
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  7. docs/pl/docs/index.md

    ## Przykład
    
    ### Stwórz
    
    * Utwórz plik o nazwie `main.py` z:
    
    ```Python
    from typing import Union
    
    from fastapi import FastAPI
    
    app = FastAPI()
    
    
    @app.get("/")
    def read_root():
        return {"Hello": "World"}
    
    
    @app.get("/items/{item_id}")
    def read_item(item_id: int, q: Union[str, None] = None):
        return {"item_id": item_id, "q": q}
    ```
    
    <details markdown="1">
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  8. docs/ru/docs/index.md

    ### Создание
    
    * Создайте файл `main.py` со следующим содержимым:
    
    ```Python
    from typing import Union
    
    from fastapi import FastAPI
    
    app = FastAPI()
    
    
    @app.get("/")
    def read_root():
        return {"Hello": "World"}
    
    
    @app.get("/items/{item_id}")
    def read_item(item_id: int, q: Union[str, None] = None):
        return {"item_id": item_id, "q": q}
    ```
    
    <details markdown="1">
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  9. docs/ko/docs/tutorial/query-params.md

    !!! check "확인"
        **FastAPI**는 `item_id`가 경로 매개변수이고 `q`는 경로 매개변수가 아닌 쿼리 매개변수라는 것을 알 정도로 충분히 똑똑합니다.
    
    !!! note "참고"
        FastAPI는 `q`가 `= None`이므로 선택적이라는 것을 인지합니다.
    
        `Union[str, None]`에 있는 `Union`은 FastAPI(FastAPI는 `str` 부분만 사용합니다)가 사용하는게 아니지만, `Union[str, None]`은 편집기에게 코드에서 오류를 찾아낼 수 있게 도와줍니다.
    
    ## 쿼리 매개변수 형변환
    
    `bool` 형으로 선언할 수도 있고, 아래처럼 변환됩니다:
    
    ```Python hl_lines="9"
    {!../../../docs_src/query_params/tutorial003.py!}
    ```
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  10. docs/zh/docs/index.md

    </div>
    
    ## 示例
    
    ### 创建
    
    * 创建一个 `main.py` 文件并写入以下内容:
    
    ```Python
    from typing import Union
    
    from fastapi import FastAPI
    
    app = FastAPI()
    
    
    @app.get("/")
    def read_root():
        return {"Hello": "World"}
    
    
    @app.get("/items/{item_id}")
    def read_item(item_id: int, q: Union[str, None] = None):
        return {"item_id": item_id, "q": q}
    ```
    
    <details markdown="1">
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