default:
			return nil, ErrUnsignedHeaders
		}
	}
	return extractedSignedHeaders, ErrNone
}

// Trim leading and trailing spaces and replace sequential spaces with one space, following Trimall()
// in http://docs.aws.amazon.com/general/latest/gr/sigv4-create-canonical-request.html
func signV4TrimAll(input string) string {

    // unsigned-divide by 2, and convert that. Then we'll get exactly half of the desired double
    // value. But in the specific case where the bottom two bits of the original number are 01, we
    // want to replace that with 1 in the shifted value for correct rounding.
    return (double) ((value >>> 1) | (value & 1)) * 2.0;
  }

  /** Returns the value of this {@code UnsignedLong} as a {@link BigInteger}. */

		# Get the original S3 object using the presigned URL
		r = requests.get(s3_url)
		original_object = r.content.decode('utf-8')

		# Transform all text in the original object to uppercase
		# You can replace it with your custom code based on your use case
		transformed_object = original_object.upper()

		# Write object back to S3 Object Lambda
		# response sends the transformed data
		# back to MinIO and then to the user

   * previous value (if any) will continue to be returned by {@code get(key)} unless it is evicted.
   * If the new value is loaded successfully it will replace the previous value in the cache; if an
   * exception is thrown while refreshing the previous value will remain, <i>and the exception will
   * be logged (using {@link java.util.logging.Logger}) and swallowed</i>.
   *

        // modify parent
        File parent = new File(tempDir.toFile(), "pom.xml");
        String parentContent = new String(Files.readAllBytes(parent.toPath()), StandardCharsets.UTF_8);
        parentContent = parentContent.replace(
                "<packaging>pom</packaging>",
                "<packaging>pom</packaging><properties><addedProperty>addedValue</addedProperty></properties>");

- The IP addresses and drive paths below are for demonstration purposes only, you need to replace these with the actual IP addresses and drive paths/folders.

        document.body().html(rewritten);
    }

    private void handleVideos(Document document) {
        String rewritten = document.body().html();

        // Replace YouTube references by embedded videos, ?si= attribute is a must
        // E.g. @youtube(Summary,UN0AFCLASZA?si=9aG5tDzj6nL1_IKT&start=371)@ => https://www.youtube.com/embed/UN0AFCLASZA?si=9aG5tDzj6nL1_IKT&start=371"

        return classInfo;
      }
    }
    throw new AssertionError("failed to find " + cls);
  }

  private static ResourceInfo resourceInfo(Class<?> cls) {
    String resource = cls.getName().replace('.', '/') + ".class";
    ClassLoader loader = cls.getClassLoader();
    return ResourceInfo.of(FILE, resource, loader);
  }

  private static ClassInfo classInfo(Class<?> cls) {

                    retVal += evaluate(expr.substring(lastIndex + 1));
                    return retVal;
                }
            }

            // Was not an expression
            return expression.replace("$$", "$");
        }

        MojoDescriptor mojoDescriptor = mojoExecution.getMojoDescriptor();

        if ("localRepository".equals(expression)) {
            value = session.getLocalRepository();

	}
	if xl2.data.entries() != 1 {
		t.Fatal("want 1 entry, got", xl2.data.entries())
	}
	// Re-add
	xl2.data.replace(fi.VersionID, fi.Data)
	failOnErr(xl2.data.validate())
	if xl2.data.entries() != 2 {
		t.Fatal("want 2 entries, got", xl2.data.entries())
	}

	// Replace entry
	xl2.data.replace("756100c6-b393-4981-928a-d49bbc164741", data2)
	failOnErr(xl2.data.validate())
	if xl2.data.entries() != 2 {