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"}
        )

	return b2
}

// A fileListEntry is a File and its ename.
// If file == nil, the fileListEntry describes a directory without metadata.
type fileListEntry struct {
	name  string
	file  *File
	isDir bool
	isDup bool
}

type fileInfoDirEntry interface {
	fs.FileInfo
	fs.DirEntry
}

func (f *fileListEntry) stat() (fileInfoDirEntry, error) {
	if f.isDup {

// credentials and mapping client certificates to S3 policies.
type Config struct {
	Enabled bool `json:"enabled"`

	// InsecureSkipVerify, if set to true, disables the client
	// certificate verification. It should only be set for
	// debugging or testing purposes.
	InsecureSkipVerify bool `json:"skip_verify"`
}

const (
	defaultExpiry time.Duration = 1 * time.Hour

from fastapi import FastAPI, Header
from pydantic import BaseModel

app = FastAPI()


class CommonHeaders(BaseModel):
    model_config = {"extra": "forbid"}

    host: str
    save_data: bool
    if_modified_since: Union[str, None] = None
    traceparent: Union[str, None] = None
    x_tag: list[str] = []


@app.get("/items/")
async def read_items(headers: Annotated[CommonHeaders, Header()]):

# Введение в аннотации типов Python

Python имеет поддержку необязательных аннотаций типов.

**Аннотации типов** являются специальным синтаксисом, который позволяет определять <abbr title="например: str, int, float, bool">тип</abbr> переменной.

Объявление типов для переменных позволяет улучшить поддержку вашего кода редакторами и различными инструментами.

	preloadNames := make([]string, 0, len(preloadMap))
	for key := range preloadMap {
		preloadNames = append(preloadNames, key)
	}
	sort.Strings(preloadNames)

	isJoined := func(name string) (joined bool, nestedJoins []string) {
		for _, join := range joins {
			if _, ok := relationships.Relations[join]; ok && name == join {
				joined = true
				continue
			}
			joinNames := strings.SplitN(join, ".", 2)

	}
	writeSuccessResponseJSON(w, resp)
}

// checkKMSActionAllowed checks for authorization for a specific action on a resource.
func checkKMSActionAllowed(r *http.Request, owner bool, cred auth.Credentials, action policy.KMSAction, resource string) bool {
	return globalIAMSys.IsAllowed(policy.Args{
		AccountName:     cred.AccessKey,
		Groups:          cred.Groups,
		Action:          policy.Action(action),

	defer store.RUnlock()

	entries := make([]string, 0, len(store.entries))
	for entry := range store.entries {
		entries = append(entries, entry)
	}

	// Sort entries...
	sort.Slice(entries, func(i, j int) bool {
		return store.entries[entries[i]] < store.entries[entries[j]]
	})

	for i := range entries {
		keys = append(keys, parseKey(entries[i]))
	}

	return keys
}

from fastapi import FastAPI, Header
from pydantic import BaseModel
from typing_extensions import Annotated

app = FastAPI()


class CommonHeaders(BaseModel):
    host: str
    save_data: bool
    if_modified_since: Union[str, None] = None
    traceparent: Union[str, None] = None
    x_tag: List[str] = []


@app.get("/items/")
async def read_items(headers: Annotated[CommonHeaders, Header()]):

from fastapi import FastAPI, Header
from pydantic import BaseModel

app = FastAPI()


class CommonHeaders(BaseModel):
    class Config:
        extra = "forbid"

    host: str
    save_data: bool
    if_modified_since: Union[str, None] = None
    traceparent: Union[str, None] = None
    x_tag: list[str] = []


@app.get("/items/")
async def read_items(headers: Annotated[CommonHeaders, Header()]):