// `ancestor`.
//
// For example:
//
//	 	/a, /a/b, /a/b/c are all descendants of /a.
//		/abc or /abd/a are not descendants of /ab.
func (cp collectorPath) isDescendantOf(arg string) bool {
	descendant := string(cp)
	if descendant == arg {
		return true
	}
	if len(arg) >= len(descendant) {
		return false
	}
	if !strings.HasSuffix(arg, SlashSeparator) {
		arg += SlashSeparator
	}

			// the parser is more liberal than what USTAR actually permits.
			notASCII := func(r rune) bool { return r >= 0x80 }
			if bytes.IndexFunc(tr.blk[:], notASCII) >= 0 {
				hdr.Format = FormatUnknown // Non-ASCII characters in block.
			}
			nul := func(b []byte) bool { return int(b[len(b)-1]) == 0 }
			if !(nul(v7.size()) && nul(v7.mode()) && nul(v7.uid()) && nul(v7.gid()) &&

from typing import Union

from fastapi import FastAPI
from pydantic import BaseModel

app = FastAPI()


class Item(BaseModel):
    name: str
    price: float
    is_offer: Union[bool, None] = None


@app.get("/")
def read_root():
    return {"Hello": "World"}


@app.get("/items/{item_id}")
def read_item(item_id: int, q: Union[str, None] = None):

                            "name": "item_id",
                            "in": "path",
                        }
                    ],
                }
            },
            "/path/bool/{item_id}": {
                "get": {
                    "responses": {
                        "200": {
                            "description": "Successful Response",

///

## Conversion des types des paramètres de requête

Vous pouvez aussi déclarer des paramètres de requête comme booléens (`bool`), **FastAPI** les convertira :

{* ../../docs_src/query_params/tutorial003.py hl[9] *}

Avec ce code, en allant sur :

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

ou

```

	if objAPI == nil {
		writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrServerNotInitialized), r.URL)
		return
	}

	vars := mux.Vars(r)
	bucket := vars["bucket"]

	var withUpdatedAt bool
	if updatedAtStr := r.Form.Get("withUpdatedAt"); updatedAtStr != "" {
		var err error
		withUpdatedAt, err = strconv.ParseBool(updatedAtStr)
		if err != nil {

	err := gcs.client.Bucket(gcs.Bucket).Object(gcs.getDest(key)).Delete(ctx)
	return gcsToObjectError(err, gcs.Bucket, key)
}

func (gcs *warmBackendGCS) InUse(ctx context.Context) (bool, error) {
	it := gcs.client.Bucket(gcs.Bucket).Objects(ctx, &storage.Query{
		Delimiter: "/",
		Prefix:    gcs.Prefix,
		Versions:  false,
	})
	pager := iterator.NewPager(it, 1, "")

// All values are true except for the ASCII control characters (0-31), the
// double quote ("), the backslash character ("\"), HTML opening and closing
// tags ("<" and ">"), and the ampersand ("&").
var htmlSafeSet = [utf8.RuneSelf]bool{
	' ':      true,
	'!':      true,
	'"':      false,
	'#':      true,
	'$':      true,
	'%':      true,
	'&':      false,
	'\'':     true,
	'(':      true,
	')':      true,
	'*':      true,

}

// Compares all the bytes returned by the given readers. Any Read
// errors cause a `false` result. A string describing the error is
// also returned.
func cmpReaders(r1, r2 io.Reader) (bool, string) {
	bufLen := 32 * 1024
	b1, b2 := make([]byte, bufLen), make([]byte, bufLen)
	for i := 0; true; i++ {
		n1, e1 := io.ReadFull(r1, b1)
		n2, e2 := io.ReadFull(r2, b2)
		if n1 != n2 {

	_, err := az.clnt.DeleteBlob(ctx, az.Bucket, az.getDest(object), &azblob.DeleteBlobOptions{})
	return azureToObjectError(err, az.Bucket, az.getDest(object))
}

func (az *warmBackendAzure) InUse(ctx context.Context) (bool, error) {
	maxResults := int32(1)
	pager := az.clnt.NewListBlobsFlatPager(az.Bucket, &azblob.ListBlobsFlatOptions{
		Prefix:     &az.Prefix,
		MaxResults: &maxResults,
	})
	if !pager.More() {
		return false, nil