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<?php
namespace Wikimedia\Telemetry;
/**
* Interface for OTEL span samplers.
* @since 1.43
*/
interface SamplerInterface {
/**
* Determine whether a newly created span should be sampled based on its parent span data.
*
* @param SpanContext|null $parentSpanContext Context of he parent span of the newly created span,
* or `null` if the newly created span is a root span.
* @return bool Whether the newly created span should be sampled.
*/
public function shouldSample( ?SpanContext $parentSpanContext ): bool;
}
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