/// <summary>
/// Graceful Leaveand Shutdown
/// </summary>
private static void GracefulLeaveandShutdown()
{
var agentGovern = new AgentGovern();
var result = agentGovern.GracefulLeaveAndShutdown().GetAwaiter().GetResult();
Console.WriteLine($"result={result.result}");
Console.WriteLine($"back content={result.backJson}");
}