```Python hl_lines="3"
import os

name = os.getenv("MY_NAME", "World")
print(f"Hello {name} from Python")
```

/// tip | Consejo

El segundo argumento de <a href="https://docs.python.org/3.8/library/os.html#os.getenv" class="external-link" target="_blank">`os.getenv()`</a> es el valor por defecto a retornar.

        dos.writeShort(Short.reverseBytes(value));
    }

    private void writeLittleEndianInt(DataOutputStream dos, int value) throws IOException {
        dos.writeInt(Integer.reverseBytes(value));
    }

    private void writeLittleEndianLong(DataOutputStream dos, long value) throws IOException {
        dos.writeLong(Long.reverseBytes(value));
    }

    # o isLoggingInsertSql: (NotRequired - Default true)
    #  Does it show insert values on log?
    #
    #; isLoggingInsertSql = true
    # - - - - - - - - - -/

    # /- - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    # o isLoggingReplaceSql: (NotRequired - Default true)
    #  Does it show replace-SQL on log?
    #
    #; isLoggingReplaceSql = true
    # - - - - - - - - - -/

**FastAPI** will **extract** the data for **each field** from the **query parameters** in the request and give you the Pydantic model you defined.

## Check the Docs { #check-the-docs }

You can see the query parameters in the docs UI at `/docs`:

<div class="screenshot">
<img src="/img/tutorial/query-param-models/image01.png">
</div>

## Forbid Extra Query Parameters { #forbid-extra-query-parameters }

        "description": "Operations with users. The **login** logic is also here.",
    },
    {
        "name": "items",
        "description": "Manage items. So _fancy_ they have their own docs.",
        "externalDocs": {
            "description": "Items external docs",
            "url": "https://fastapi.tiangolo.com/",
        },
    },
]

app = FastAPI(openapi_tags=tags_metadata)


@app.get("/users/", tags=["users"])

[The list of metrics reported can be here](https://github.com/minio/minio/blob/master/docs/metrics/prometheus/list.md)

### Configure Alerts for Prometheus

    page = context.new_page()
    page.goto("http://localhost:8000/docs")
    page.get_by_text("POST/items/Create Item").click()
    page.get_by_role("tab", name="Schema").first.click()
    # Manually add the screenshot
    page.screenshot(
        path="docs/en/docs/img/tutorial/separate-openapi-schemas/image01.png"
    )

    # ---------------------
    context.close()

     * @return false always, as this generator does not create thumbnails
     */
    @Override
    public boolean generate(final String thumbnailId, final File outputFile) {
        return false;
    }

    /**
     * Destroys this generator and releases any resources.
     * This implementation does nothing as no resources are held.
     */
    @Override
    public void destroy() {

    page = context.new_page()
    page.goto("http://localhost:8000/docs")
    page.get_by_role("button", name="Item-Input").click()
    page.get_by_role("button", name="Item-Output").click()
    page.set_viewport_size({"width": 960, "height": 820})
    # Manually add the screenshot
    page.screenshot(
        path="docs/en/docs/img/tutorial/separate-openapi-schemas/image04.png"
    )
    # ---------------------

[Kubernetes Security and Disclosure Information] page.

[Kubernetes version and version skew support policy]: https://kubernetes.io/docs/setup/release/version-skew-policy/#supported-versions