}
}

// Tests validate metadata extraction from http headers.
func TestExtractMetadataHeaders(t *testing.T) {
	testCases := []struct {
		header     http.Header
		metadata   map[string]string
		shouldFail bool
	}{
		// Validate if there a known 'content-type'.
		{
			header: http.Header{
				"Content-Type": []string{"image/png"},
			},
			metadata: map[string]string{
				"content-type": "image/png",
			},

import (
	"encoding/binary"
	"errors"
	"flag"
	"fmt"
	"log"
	"os"

	"github.com/olekukonko/tablewriter"
	"github.com/pkg/xattr"
)

var (
	path, name string
	value      uint64
	set, list  bool
)

func getxattr(path, name string) (uint64, error) {
	buf, err := xattr.LGet(path, name)
	if err != nil {
		return 0, err
	}

	return binary.LittleEndian.Uint64(buf[:8]), nil
}

func TestSkipContentSha256Cksum(t *testing.T) {
	testCases := []struct {
		inputHeaderKey   string
		inputHeaderValue string

		inputQueryKey   string
		inputQueryValue string

		expectedResult bool
	}{
		// Test case - 1.
		// Test case with "X-Amz-Content-Sha256" header set, but to empty value but we can't skip.
		{"X-Amz-Content-Sha256", "", "", "", false},

		// Test case - 2.

}

// Legacy returns 'true' if distribution algo is CRCMOD
func (s *erasureSets) Legacy() (ok bool) {
	return s.distributionAlgo == formatErasureVersionV2DistributionAlgoV1
}

// connectDisks - attempt to connect all the endpoints, loads format
// and re-arranges the disks in proper position.
func (s *erasureSets) connectDisks(log bool) {
	defer func() {
		s.lastConnectDisksOpTime = time.Now()
	}()

	var wg sync.WaitGroup

	// username in authentication request matches to identities in certificate
	// and that certificate type is correct.
	checker := ssh.CertChecker{}
	checker.IsUserAuthority = func(k ssh.PublicKey) bool {
		return subtle.ConstantTimeCompare(globalSFTPTrustedCAPubkey.Marshal(), k.Marshal()) == 1
	}

	_, err = checker.Authenticate(c, clientKey)
	return
}

type sftpLogger struct{}

# Introduction aux Types Python

Python supporte des annotations de type (ou *type hints*) optionnelles.

Ces annotations de type constituent une syntaxe spéciale qui permet de déclarer le <abbr title="par exemple : str, int, float, bool">type</abbr> d'une variable.

En déclarant les types de vos variables, cela permet aux différents outils comme les éditeurs de texte d'offrir un meilleur support.

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):

```Python hl_lines="2  7 8 9 10  23 24 25"
from fastapi import FastAPI
from pydantic import BaseModel

app = FastAPI()


class Item(BaseModel):
    name: str
    price: float
    is_offer: bool = None


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


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

func newTestReaderEOF(data []byte) io.Reader {
	return &testOneByteReadEOF{false, data}
}

// OneByteReadEOF - implements io.Reader which returns 1 byte along with io.EOF error.
type testOneByteReadEOF struct {
	eof  bool
	data []byte
}

func (r *testOneByteReadEOF) Read(p []byte) (n int, err error) {
	if r.eof {
		return 0, io.EOF
	}
	n = copy(p, r.data)
	r.eof = true
	return n, io.EOF
}

    }

    public void bool(BoolCall<ElevateWordCQ> boolLambda) {
        bool(boolLambda, null);
    }

    public void bool(BoolCall<ElevateWordCQ> boolLambda, ConditionOptionCall<BoolQueryBuilder> opLambda) {
        ElevateWordCQ mustQuery = new ElevateWordCQ();
        ElevateWordCQ shouldQuery = new ElevateWordCQ();
        ElevateWordCQ mustNotQuery = new ElevateWordCQ();