cfg.IdleMode = 0
	case config.EnableOff:
		cfg.IdleMode = 1
	default:
		return cfg, fmt.Errorf("unknown value: '%s'", idleSpeed)
	}

	// Stick to loading deprecated config/env if they are already set, and the Speed value
	// has not been changed from its "default" value, if it has been changed honor new settings.
	if kvs.GetWithDefault(Speed, DefaultKVS) == "default" {
		if kvs.Get(Delay) != "" && kvs.Get(MaxWait) != "" {

from typing import Annotated

import pytest
from fastapi import APIRouter, FastAPI, Query
from fastapi.testclient import TestClient

app = FastAPI()


@app.get("/default")
async def default(foo: Annotated[str, Query()] = "foo"):
    return {"foo": foo}


@app.get("/required")
async def required(foo: Annotated[str, Query(min_length=1)]):
    return {"foo": foo}


@app.get("/multiple")

 Container logging API}}, like any other Plexus components, ie
 {{{https://codehaus-plexus.github.io/plexus-containers/plexus-container-default/apidocs/org/codehaus/plexus/logging/LoggerManager.html}LoggerManager}}
 / {{{https://codehaus-plexus.github.io/plexus-containers/plexus-container-default/apidocs/org/codehaus/plexus/logging/Logger.html}Logger}}.

DefaultType = TypeVar("DefaultType")


def Default(value: DefaultType) -> DefaultType:
    """
    You shouldn't use this function directly.

    It's used internally to recognize when a default value has been overwritten, even
    if the overridden default value was truthy.
    """

///

## Override the default exception handlers { #override-the-default-exception-handlers }

**FastAPI** has some default exception handlers.

These handlers are in charge of returning the default JSON responses when you `raise` an `HTTPException` and when the request has invalid data.

Итак:

```Python
q: str | None = Query(default=None)
```

...делает параметр необязательным со значением по умолчанию `None`, так же как:

```Python
q: str | None = None
```

 * as desired per the <a href="http://en.wikipedia.org/wiki/Decorator_pattern">decorator
 * pattern</a>.
 *
 * <p><b>{@code default} method warning:</b> This class does <i>not</i> forward calls to {@code
 * default} methods. Instead, it inherits their default implementations. When those implementations
 * invoke methods, they invoke methods on the {@code ForwardingBlockingQueue}.
 *
 * @author Raimundo Mirisola

import (
	"io"
	"io/fs"
	"os"

	"github.com/minio/minio/internal/disk"
)

var (
	// OpenFileDirectIO allows overriding default function.
	OpenFileDirectIO = disk.OpenFileDirectIO
	// OsOpen allows overriding default function.
	OsOpen = os.Open
	// OsOpenFile allows overriding default function.
	OsOpenFile = os.OpenFile
)

// ReadFileWithFileInfo reads the named file and returns the contents.

     *
     * @param input The file to deserialize the metadata from, must not be {@code null}.
     * @param options The options to use for deserialization, may be {@code null} to use the default values.
     * @return The deserialized metadata, never {@code null}.
     * @throws IOException If the metadata could not be deserialized.
     * @throws MetadataParseException If the input format could not be parsed.
     */

     *
     * @param input The file to deserialize the settings from, must not be {@code null}.
     * @param options The options to use for deserialization, may be {@code null} to use the default values.
     * @return The deserialized settings, never {@code null}.
     * @throws IOException If the settings could not be deserialized.
     * @throws SettingsParseException If the input format could not be parsed.
     */