};

function replyCall(replySpy: { mock: { calls: unknown[][] } }, index = 0): HeartbeatReplyContext {

return (replySpy.mock.calls.at(index)?.at(0) ?? {}) as HeartbeatReplyContext;

return (replySpy.mock.calls[index]?.at(0) ?? {}) as HeartbeatReplyContext;

}

describe("runHeartbeatOnce – isolated session key stability (#59493)", () => {