Signature     string
}

// preSignValues data type represents structured form of AWS Signature V4 query string.
type preSignValues struct {
	signValues
	Date    time.Time
	Expires time.Duration
}

// Parses signature version '4' query string of the following form.
//
//	querystring = X-Amz-Algorithm=algorithm
//	querystring += &X-Amz-Credential= urlencode(accessKey + '/' + credential_scope)

    /**
     * CORS header for allowing credentials.
     */
    protected static final String ACCESS_CONTROL_ALLOW_CREDENTIALS = "Access-Control-Allow-Credentials";

    /**
     * CORS header for specifying cache duration for preflight requests.
     */
    protected static final String ACCESS_CONTROL_MAX_AGE = "Access-Control-Max-Age";

    /**
     * Processes the CORS request by setting appropriate headers.
     *

     *
     * @param loadTime the number of nanoseconds the cache spent computing or retrieving the new
     *     value
     */
    @SuppressWarnings("GoodTime") // should accept a java.time.Duration
    void recordLoadSuccess(long loadTime);

    /**
     * Records the failed load of a new entry. This should be called when a cache request causes an

pkg context, func TODO() Context
pkg context, func WithCancel(Context) (Context, CancelFunc)
pkg context, func WithDeadline(Context, time.Time) (Context, CancelFunc)
pkg context, func WithTimeout(Context, time.Duration) (Context, CancelFunc)
pkg context, func WithValue(Context, interface{}, interface{}) Context
pkg context, type CancelFunc func()
pkg context, type Context interface { Deadline, Done, Err, Value }

Following example shows how you can use [`minio-go` PresignedGetObject](https://docs.min.io/community/minio-object-store/developers/go/API.html#presignedgetobject-ctx-context-context-bucketname-objectname-string-expiry-time-duration-reqparams-url-values-url-url-error)
```go
package main

import (
	"context"
	"log"
	"net/url"
	"time"
	"fmt"

	"github.com/minio/minio-go/v7"

 * <ul>
 *   <li>PERSISTENT - Data persists across Maven invocations</li>
 *   <li>SESSION_SCOPED - Data retained for the duration of a Maven session</li>
 *   <li>REQUEST_SCOPED - Data retained only for the current build request</li>
 *   <li>DISABLED - No caching performed</li>
 * </ul>
 * <p>
 * Example usage:
 * <pre>

pkg net/http, type PushOptions struct, Method string
pkg net/http, type Request struct, GetBody func() (io.ReadCloser, error)
pkg net/http, type Server struct, IdleTimeout time.Duration
pkg net/http, type Server struct, ReadHeaderTimeout time.Duration
pkg net/http, type Transport struct, ProxyConnectHeader Header
pkg net/http, var ErrAbortHandler error
pkg net/http, var ErrServerClosed error
pkg net/http, var NoBody noBody

	}
	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,

pkg net/http, type HTTP2Config struct, PermitProhibitedCipherSuites bool #67813
pkg net/http, type HTTP2Config struct, PingTimeout time.Duration #67813
pkg net/http, type HTTP2Config struct, SendPingTimeout time.Duration #67813
pkg net/http, type HTTP2Config struct, WriteByteTimeout time.Duration #67813
pkg net/http, type Protocols struct #67814
pkg net/http, type Server struct, HTTP2 *HTTP2Config #67813

import com.google.errorprone.annotations.ForOverride;
import com.google.errorprone.annotations.concurrent.GuardedBy;
import com.google.j2objc.annotations.WeakOuter;
import java.time.Duration;
import java.util.concurrent.Executor;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
import org.jspecify.annotations.Nullable;

/**