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<?php
declare(strict_types=1);
namespace OpenTelemetry\API\Instrumentation;
use OpenTelemetry\API\Logs\LoggerProviderInterface;
use OpenTelemetry\API\Metrics\MeterProviderInterface;
use OpenTelemetry\API\Trace\TracerProviderInterface;
use OpenTelemetry\Context\Context;
use OpenTelemetry\Context\ContextKeyInterface;
use OpenTelemetry\Context\Propagation\TextMapPropagatorInterface;
/**
* @internal
*/
final class ContextKeys
{
/**
* @return ContextKeyInterface<TracerProviderInterface>
*/
public static function tracerProvider(): ContextKeyInterface
{
static $instance;
return $instance ??= Context::createKey(TracerProviderInterface::class);
}
/**
* @return ContextKeyInterface<MeterProviderInterface>
*/
public static function meterProvider(): ContextKeyInterface
{
static $instance;
return $instance ??= Context::createKey(MeterProviderInterface::class);
}
/**
* @return ContextKeyInterface<TextMapPropagatorInterface>
*/
public static function propagator(): ContextKeyInterface
{
static $instance;
return $instance ??= Context::createKey(TextMapPropagatorInterface::class);
}
/**
* @return ContextKeyInterface<LoggerProviderInterface>
*/
public static function loggerProvider(): ContextKeyInterface
{
static $instance;
return $instance ??= Context::createKey(LoggerProviderInterface::class);
}
}
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