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  1. fastapi/param_functions.py

                The parameter is available only for compatibility.
                """
            ),
        ] = ...,
        *,
        default_factory: Annotated[
            Union[Callable[[], Any], None],
            Doc(
                """
                A callable to generate the default value.
    
                This doesn't affect `Path` parameters as the value is always required.
                The parameter is available only for compatibility.
    Python
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  2. fastapi/params.py

    import warnings
    from enum import Enum
    from typing import Any, Callable, Dict, List, Optional, Sequence, Union
    
    from fastapi.openapi.models import Example
    from pydantic.fields import FieldInfo
    from typing_extensions import Annotated, deprecated
    
    from ._compat import PYDANTIC_V2, PYDANTIC_VERSION, Undefined
    
    _Unset: Any = Undefined
    
    
    class ParamTypes(Enum):
        query = "query"
        header = "header"
        path = "path"
    Python
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    - Last Modified: Thu Apr 18 19:40:57 GMT 2024
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  3. docs/de/docs/reference/dependencies.md

    # Abhängigkeiten – `Depends()` und `Security()`
    
    ## `Depends()`
    
    Abhängigkeiten werden hauptsächlich mit der speziellen Funktion `Depends()` behandelt, die ein Callable entgegennimmt.
    
    Hier finden Sie deren Referenz und Parameter.
    
    Sie können sie direkt von `fastapi` importieren:
    
    ```python
    from fastapi import Depends
    ```
    
    ::: fastapi.Depends
    
    ## `Security()`
    
    Plain Text
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  4. docs/en/docs/tutorial/security/first-steps.md

    The `oauth2_scheme` variable is an instance of `OAuth2PasswordBearer`, but it is also a "callable".
    
    It could be called as:
    
    ```Python
    oauth2_scheme(some, parameters)
    ```
    
    So, it can be used with `Depends`.
    
    ### Use it
    
    Plain Text
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  5. docs/en/docs/release-notes.md

    * Fix support for callable class dependencies with `yield`. PR [#1365](https://github.com/tiangolo/fastapi/pull/1365) by [@mrosales](https://github.com/mrosales).
    Plain Text
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  6. docs/de/docs/tutorial/dependencies/classes-as-dependencies.md

    Eine Python-Klasse ist also auch ein **Callable**.
    
    Darum können Sie in **FastAPI** auch eine Python-Klasse als Abhängigkeit verwenden.
    
    Was FastAPI tatsächlich prüft, ist, ob es sich um ein „Callable“ (Funktion, Klasse oder irgendetwas anderes) handelt und ob die Parameter definiert sind.
    
    Plain Text
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  7. fastapi/applications.py

                ),
            ] = State()
            self.dependency_overrides: Annotated[
                Dict[Callable[..., Any], Callable[..., Any]],
                Doc(
                    """
                    A dictionary with overrides for the dependencies.
    
                    Each key is the original dependency callable, and the value is the
                    actual dependency that should be called.
    
    Python
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  8. docs/en/docs/reference/dependencies.md

    # Dependencies - `Depends()` and `Security()`
    
    ## `Depends()`
    
    Dependencies are handled mainly with the special function `Depends()` that takes a callable.
    
    Here is the reference for it and its parameters.
    
    You can import it directly from `fastapi`:
    
    ```python
    from fastapi import Depends
    ```
    
    ::: fastapi.Depends
    
    ## `Security()`
    
    Plain Text
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  9. fastapi/openapi/models.py

    from enum import Enum
    from typing import Any, Callable, Dict, Iterable, List, Optional, Set, Type, Union
    
    from fastapi._compat import (
        PYDANTIC_V2,
        CoreSchema,
        GetJsonSchemaHandler,
        JsonSchemaValue,
        _model_rebuild,
        with_info_plain_validator_function,
    )
    from fastapi.logger import logger
    from pydantic import AnyUrl, BaseModel, Field
    from typing_extensions import Annotated, Literal, TypedDict
    Python
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  10. docs/de/docs/advanced/advanced-dependencies.md

    Aber wir wollen diesen vordefinierten Inhalt per Parameter festlegen können.
    
    ## Eine „aufrufbare“ Instanz
    
    In Python gibt es eine Möglichkeit, eine Instanz einer Klasse „aufrufbar“ („callable“) zu machen.
    
    Nicht die Klasse selbst (die bereits aufrufbar ist), sondern eine Instanz dieser Klasse.
    
    Dazu deklarieren wir eine Methode `__call__`:
    
    === "Python 3.9+"
    
        ```Python hl_lines="12"
    Plain Text
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