if len(form) == 0 {
		return nil
	}

	sessionPolicyStr := form.Get(stsPolicy)
	if len(sessionPolicyStr) == 0 {
		return nil
	}

	sessionPolicy, err := policy.ParseConfig(bytes.NewReader([]byte(sessionPolicyStr)))
	if err != nil {
		return err
	}

	// Version in policy must not be empty
	if sessionPolicy.Version == "" {
		return errors.New("Version cannot be empty expecting '2012-10-17'")

			iamFile := pathJoin(iamAssetsDir, f)

			fileContent, ok := exportContent[f]
			if !ok {
				t.Fatalf("missing content for %s", f)
			}

			if err := rawDataFn(bytes.NewReader(fileContent), iamFile, len(fileContent)); err != nil {
				t.Fatalf("failed to write %s: %v", iamFile, err)
			}
		}
		zipWriter.Close()
		importContent = b.Bytes()
	}

   * @param charset the charset used to decode the input stream; see {@link StandardCharsets} for
   *     helpful predefined constants
   * @return the buffered reader
   */
  public static BufferedReader newReader(File file, Charset charset) throws FileNotFoundException {
    checkNotNull(file);
    checkNotNull(charset);
    return new BufferedReader(new InputStreamReader(new FileInputStream(file), charset));
  }

  /**

	formData := url.Values{}
	formData.Set("login", username)
	formData.Set("password", password)
	req, err = http.NewRequestWithContext(ctx, http.MethodPost, lastReq.URL.String(), strings.NewReader(formData.Encode()))
	if err != nil {
		return "", fmt.Errorf("new request err (/login): %v", err)
	}
	req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
	_, err = dexClient.Do(req)

	}
}

func mergeServerCtxtFromConfigFile(configFile string, ctxt *serverCtxt) error {
	rd, err := xioutil.ReadFile(configFile)
	if err != nil {
		return err
	}

	cfReader := bytes.NewReader(rd)

	cv := config.ServerConfigVersion{}
	if err = yaml.Unmarshal(rd, &cv); err != nil {
		return err
	}

	switch cv.Version {
	case "v1", "v2":
	default:

   * @param charset the charset used to decode the input stream; see {@link StandardCharsets} for
   *     helpful predefined constants
   * @return the buffered reader
   */
  public static BufferedReader newReader(File file, Charset charset) throws FileNotFoundException {
    checkNotNull(file);
    checkNotNull(charset);
    return new BufferedReader(new InputStreamReader(new FileInputStream(file), charset));
  }

  /**

			log.Fatalf("loading imports: %v\n%s", err, out)
		}

		var stdPackages []string
		importMap := make(map[string]map[string]string)
		importDir := make(map[string]string)
		dec := json.NewDecoder(bytes.NewReader(out))
		for {
			var pkg struct {
				ImportPath, Dir string
				ImportMap       map[string]string
				Standard        bool
			}
			err := dec.Decode(&pkg)
			if err == io.EOF {
				break
			}

// waitForHTTPResponse will wait for responses where keepHTTPResponseAlive
// has been used.
// The returned reader contains the payload.
func waitForHTTPResponse(respBody io.Reader) (io.Reader, error) {
	reader := bufio.NewReader(respBody)
	for {
		b, err := reader.ReadByte()
		if err != nil {
			return nil, err
		}
		// Check if we have a response ready or a filler byte.
		switch b {
		case 0:
			return reader, nil

		if len(data) == 0 {
			return data
		}
		var buffer bytes.Buffer
		mac := hmac.New(sha256.New, key[:])
		mac.Write([]byte(baseKey))
		if _, err := sio.Encrypt(&buffer, bytes.NewReader(data), sio.Config{Key: mac.Sum(nil), CipherSuites: fips.DARECiphers()}); err != nil {
			logger.CriticalIf(context.Background(), errors.New("unable to encrypt using object key"))
		}
		return buffer.Bytes()
	}
}

	}

	req.ContentLength = int64(len(buf))
	sum := sha256.Sum256(buf)
	req.Header.Set("X-Amz-Content-Sha256", hex.EncodeToString(sum[:]))
	req.Body = io.NopCloser(bytes.NewReader(buf))
	req = signer.SignV4(*req, accessKey, secretKey, "", "")

	// 3.1 Execute the request.
	resp, err := s.TestSuiteCommon.client.Do(req)
	if err != nil {
		c.Fatalf("unexpected request err: %v", err)
	}