TransportInterface.php

<?php

declare (strict_types=1);
namespace OpenTelemetry\SDK\Common\Export;

use OpenTelemetry\SDK\Common\Future\CancellationInterface;
use OpenTelemetry\SDK\Common\Future\FutureInterface;

/**
 * @psalm-template-covariant CONTENT_TYPE of string
 */
interface TransportInterface {
    public function contentType() : string;
    public function send(string $payload, ?CancellationInterface $cancellation = null) : FutureInterface;
    public function shutdown(?CancellationInterface $cancellation = null) : bool;
    public function forceFlush(?CancellationInterface $cancellation = null) : bool;

}