* Returns true if none of the Vary headers have changed between [cachedRequest] and
     * [newRequest].
     */
    fun varyMatches(
      cachedResponse: Response,
      cachedRequest: Headers,
      newRequest: Request,
    ): Boolean =
      cachedResponse.headers.varyFields().none {
        cachedRequest.values(it) != newRequest.headers(it)
      }

		{"X-Amz-Content-Sha256", "", false},
	}

	for i, testCase := range testCases {
		// creating an input HTTP request.
		// Only the query parameters are relevant for this particular test.
		inputReq, err := http.NewRequest(http.MethodGet, "http://example.com", nil)
		if err != nil {
			t.Fatalf("Error initializing input HTTP request: %v", err)
		}
		q := inputReq.URL.Query()
		q.Add(testCase.inputQueryKey, testCase.inputQueryValue)

	data, err := json.Marshal(event.Log{EventName: eventData.EventName, Key: key, Records: []event.Event{eventData}})
	if err != nil {
		return err
	}

	req, err := http.NewRequest(http.MethodPost, target.args.Endpoint.String(), bytes.NewReader(data))
	if err != nil {
		return err
	}

	// Verify if the authToken already contains
	// <Key> <Token> like format, if this is

		if !testCase.shouldPass && err == nil {
			t.Errorf("Test %d: expected to fail but passed.", i+1)
		}
	}
}

// Testing dumping request function.
func TestDumpRequest(t *testing.T) {

	}
	uaAppend(")", "")

	return strings.Join(userAgentParts, "")
}

func downloadReleaseURL(u *url.URL, timeout time.Duration, mode string) (content string, err error) {
	req, err := http.NewRequest(http.MethodGet, u.String(), nil)
	if err != nil {
		return content, AdminError{
			Code:       AdminUpdateUnexpectedFailure,
			Message:    err.Error(),
			StatusCode: http.StatusInternalServerError,
		}
	}

	CodeChallengeMethodsSupported    []string `json:"code_challenge_methods_supported,omitempty"`
}

func parseDiscoveryDoc(ustr string) (DiscoveryDoc, error) {
	d := DiscoveryDoc{}
	req, err := http.NewRequest(http.MethodGet, ustr, nil)
	if err != nil {
		return d, err
	}
	clnt := http.Client{
		Transport: http.DefaultTransport,
	}
	resp, err := clnt.Do(req)
	if err != nil {
		return d, err
	}

}

func parseDiscoveryDoc(u *xnet.URL, transport http.RoundTripper, closeRespFn func(io.ReadCloser)) (DiscoveryDoc, error) {
	d := DiscoveryDoc{}
	req, err := http.NewRequest(http.MethodGet, u.String(), nil)
	if err != nil {
		return d, err
	}
	clnt := http.Client{
		Transport: transport,
	}
	resp, err := clnt.Do(req)
	if err != nil {
		return d, err
	}

		query := url.Values{}
		for key, value := range testCase.queryParams {
			query.Set(key, value)
		}

		// Create a request to use.
		req, e := http.NewRequest(http.MethodGet, "http://host/a/b?"+query.Encode(), nil)
		if e != nil {
			t.Errorf("(%d) failed to create http.Request, got %v", i, e)
		}

		// Do the same for the headers.

	CloseRespFn func(r io.ReadCloser)

	RolePolicy string
	RoleARN    arn.ARN
}

// Validate - validate configuration params.
func (a *Args) Validate() error {
	req, err := http.NewRequest(http.MethodPost, a.URL.String(), bytes.NewReader([]byte("")))
	if err != nil {
		return err
	}

	req.Header.Set("Content-Type", "application/json")
	if a.AuthToken != "" {

pkg net/http, var ErrUseLastResponse error
pkg net/http, var LocalAddrContextKey *contextKey
pkg net/http, var ServerContextKey *contextKey
pkg net/http/cgi, type Handler struct, Stderr io.Writer
pkg net/http/httptest, func NewRequest(string, string, io.Reader) *http.Request
pkg net/http/httptest, method (*ResponseRecorder) Result() *http.Response
pkg net/http/httptrace, func ContextClientTrace(context.Context) *ClientTrace