NoopObservableUpDownCounter.php

<?php

declare (strict_types=1);
namespace OpenTelemetry\API\Metrics\Noop;

use OpenTelemetry\API\Metrics\ObservableCallbackInterface;
use OpenTelemetry\API\Metrics\ObservableUpDownCounterInterface;

/**
 * @internal
 */
final class NoopObservableUpDownCounter implements ObservableUpDownCounterInterface {
    public function observe(callable $callback, bool $weaken = false) : ObservableCallbackInterface {
        return new NoopObservableCallback();
    }
    public function isEnabled() : bool {
        return false;
    }

}