NoopObserver.php

<?php

declare (strict_types=1);
namespace OpenTelemetry\SDK\Metrics\MetricRegistry;

use OpenTelemetry\API\Metrics\ObserverInterface;

/**
 * @internal
 */
final class NoopObserver implements ObserverInterface {
    public function observe($amount, iterable $attributes = []) : void {
        // no-op
    }

}