from fastapi import FastAPI

app = FastAPI()


@app.get("/items/{item_id}")
async def read_item(item_id: str, q: str | None = None, short: bool = False):
    item = {"item_id": item_id}
    if q:
        item.update({"q": q})
    if not short:
        item.update(
            {"description": "This is an amazing item that has a long description"}
        )

// IsEmpty returns true if output location not specified.
func (o *OutputLocation) IsEmpty() bool {
	return o.S3.BucketName == ""
}

// SelectParameters specifies sql select parameters
type SelectParameters struct {
	s3select.S3Select
}

// IsEmpty returns true if no select parameters set
func (sp *SelectParameters) IsEmpty() bool {
	return sp == nil
}

var selectParamsXMLName = "SelectParameters"

// Set server def with timeout.
TF_CAPI_EXPORT extern void TFE_ContextSetServerDefWithTimeout(
    TFE_Context* ctx, int keep_alive_secs, const void* proto, size_t proto_len,
    int64_t init_timeout_in_ms, TF_Status* status,
    bool clear_existing_contexts) {
  TFE_ContextSetServerDefWithTimeoutAndRetries(
      ctx, keep_alive_secs, proto, proto_len, init_timeout_in_ms,
      /*retries=*/0, status, clear_existing_contexts);
}

 */
package org.apache.maven.api.cli.mvnsh;

import org.apache.maven.api.annotations.Experimental;
import org.apache.maven.api.cli.Options;

/**
 * Defines the options specific to the Maven Shell tool.
 * This interface extends the general {@link Options} interface, adding shell-specific configuration options.
 *
 * @since 4.0.0
 */
@Experimental

在這種情況下，函式參數 `q` 為選用，且預設為 `None`。

/// check | 注意

另外請注意，FastAPI 能辨識出路徑參數 `item_id` 是路徑參數，而 `q` 不是，因此 `q` 會被當作查詢參數。

///

## 查詢參數型別轉換 { #query-parameter-type-conversion }

你也可以宣告 `bool` 型別，值會被自動轉換：

{* ../../docs_src/query_params/tutorial003_py310.py hl[7] *}

在這種情況下，如果你造訪：

```
http://127.0.0.1:8000/items/foo?short=1
```

或

```
http://127.0.0.1:8000/items/foo?short=True

///

## Sorgu parametresi tip dönüşümü { #query-parameter-type-conversion }

`bool` tipleri de tanımlayabilirsiniz, ve bunlar dönüştürülür:

{* ../../docs_src/query_params/tutorial003_py310.py hl[7] *}

Bu durumda, şuraya giderseniz:

```
http://127.0.0.1:8000/items/foo?short=1
```

veya

import (
	"fmt"
	"strings"

	"github.com/minio/minio/internal/config"
	"github.com/minio/pkg/v3/env"
)

// Config represents the compression settings.
type Config struct {
	Enabled        bool     `json:"enabled"`
	AllowEncrypted bool     `json:"allow_encryption"`
	Extensions     []string `json:"extensions"`
	MimeTypes      []string `json:"mime-types"`
}

// Compression environment variables
const (

		{Name: "DeletedAt", DBName: "deleted_at", BindNames: []string{"DeletedAt"}, DataType: schema.Time},
		{Name: "Active", DBName: "active", BindNames: []string{"Active"}, DataType: schema.Bool},
		{Name: "Admin", DBName: "admin", BindNames: []string{"Admin"}, DataType: schema.Bool},
	}

	for i := range fields {
		checkSchemaField(t, user, &fields[i], func(f *schema.Field) {
			f.Creatable = true
			f.Updatable = true
			f.Readable = true

		return checkPartVolumeNotFound
	case errDiskNotFound:
		return checkPartDiskNotFound
	default:
		return checkPartUnknown
	}
}

func partNeedsHealing(partErrs []int) bool {
	return slices.IndexFunc(partErrs, func(i int) bool { return i != checkPartSuccess && i != checkPartUnknown }) > -1
}

func countPartNotSuccess(partErrs []int) (c int) {
	for _, pe := range partErrs {
		if pe != checkPartSuccess {
			c++

```toml
[tool.fastapi]
entrypoint = "main:app"
```

Этот `entrypoint` сообщит команде `fastapi`, что приложение нужно импортировать так:

```python
from main import app
```

Если ваш код организован так:

```
.
├── backend
│   ├── main.py
│   ├── __init__.py
```

Тогда следует указать `entrypoint` так:

```toml
[tool.fastapi]
entrypoint = "backend.main:app"