///

La variable `oauth2_scheme` es una instance de `OAuth2PasswordBearer`, pero también es un "callable".

Podría ser llamada como:

```Python
oauth2_scheme(some, parameters)
```

Así que, puede usarse con `Depends`.

///

Die Variable `oauth2_scheme` ist eine Instanz von `OAuth2PasswordBearer`, aber auch ein „Callable“.

Es könnte wie folgt aufgerufen werden:

```Python
oauth2_scheme(some, parameters)
```

```Python
commons: Annotated[dict, Depends(common_parameters)]
```

Pero como estamos usando `Annotated`, podemos almacenar ese valor `Annotated` en una variable y usarlo en múltiples lugares:

{* ../../docs_src/dependencies/tutorial001_02_an_py310.py hl[12,16,21] *}

/// tip | Consejo

Escribes Python estándar con tipos:

```Python
from datetime import date

from pydantic import BaseModel

# Declara una variable como un str
# y obtiene soporte del editor dentro de la función
def main(user_id: str):
    return user_id


# Un modelo de Pydantic
class User(BaseModel):
    id: int
    name: str
    joined: date

Imagine that you want the parameter to be `item-query`.

Like in:

```
http://127.0.0.1:8000/items/?item-query=foobaritems
```

But `item-query` is not a valid Python variable name.

The closest would be `item_query`.

But you still need it to be exactly `item-query`...

Then you can declare an `alias`, and that alias is what will be used to find the parameter value:

Sie schreiben Standard-Python mit Typen:

```Python
from datetime import date

from pydantic import BaseModel

# Deklarieren Sie eine Variable als ein str
# und bekommen Sie Editor-Unterstützung innerhalb der Funktion
def main(user_id: str):
    return user_id


# Ein Pydantic-Modell
class User(BaseModel):
    id: int
    name: str

You write standard Python with types:

```Python
from datetime import date

from pydantic import BaseModel

# Declare a variable as a str
# and get editor support inside the function
def main(user_id: str):
    return user_id


# A Pydantic model
class User(BaseModel):
    id: int
    name: str
    joined: date
```

}

// Grammar for Operand:
//
// operand → multOp ( ("-" | "+") multOp )*
// multOp  → unary ( ("/" | "*" | "%") unary )*
// unary   → "-" unary | primary
// primary → Value | Variable | "(" expression ")"
//

// An Operand is a single term followed by an optional sequence of
// terms separated by +/-
type Operand struct {
	Left  *MultOp     `parser:"@@"`
	Right []*OpFactor `parser:"(@@)*"`

$ source .venv/Scripts/activate
```

</div>

////

이 명령어는 이후에 실행될 명령어에서 사용될 [환경 변수](environment-variables.md){.internal-link target=_blank} 몇 개를 생성하거나 수정합니다.

이 변수들 중 하나가 바로 `PATH` 변수입니다.

/// tip | 팁

`PATH` 환경 변수에 대해 더 알고 싶다면 [환경 변수 문서의 PATH 환경 변수 섹션](environment-variables.md#path-environment-variable){.internal-link target=_blank}을 참고하세요.

///

        if (StringUtil.isBlank(projectId)) {
            throw new CrawlingAccessException(
                    "GCS project ID is blank. Please set the GCS_PROJECT_ID environment variable or projectId parameter.");
        }

        final StorageOptions.Builder builder = StorageOptions.newBuilder().setProjectId(projectId);