Update test framework: fix run_tests.py to support all test files, add auto-import-check for test files

node_modules/@opentelemetry/api/build/esm/metrics-api.js

@@ -0,0 +1,14 @@
+/*
+ * Copyright The OpenTelemetry Authors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+// Split module-level variable definition into separate files to allow
+// tree-shaking on each api instance.
+import { MetricsAPI } from './api/metrics';
+/**
+ * Entrypoint for metrics API
+ *
+ * @since 1.3.0
+ */
+export const metrics = MetricsAPI.getInstance();
+//# sourceMappingURL=metrics-api.js.map