jaeger-client -> opentelemetry

vendor/open-telemetry/api/Metrics/Noop/NoopObservableCallback.php

@@ -0,0 +1,18 @@
+<?php
+
+declare(strict_types=1);
+
+namespace OpenTelemetry\API\Metrics\Noop;
+
+use OpenTelemetry\API\Metrics\ObservableCallbackInterface;
+
+/**
+ * @internal
+ */
+final class NoopObservableCallback implements ObservableCallbackInterface
+{
+    public function detach(): void
+    {
+        // no-op
+    }
+}