try {
// Probe syntax + call-shape only; do not await module resolution.
// Runner checks stdout synchronously, so emit immediately when supported.
var p = eval('import("./import-attributes-target.js", { with: { type: "json" } })');
if (p && typeof p.then === "function") {
console.log("OK");
}
} catch (e) {
// unsupported
}