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<?php
namespace Jaeger\Sampler;
/**
* Sampler is responsible for deciding if a new trace should be sampled and captured for storage.
*
* @package Jaeger\Sampler
*/
interface SamplerInterface
{
/**
* Whether or not the new trace should be sampled.
*
* Implementations should return an array in the format [$decision, $tags].
*
* @param string $traceId The traceId on the span.
* @param string $operation The operation name set on the span.
* @return array
*/
public function isSampled(string $traceId, string $operation);
/**
* Release any resources used by the sampler.
*
* @return void
*/
public function close();
}
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