public class Demo
    {
        [Function(nameof(DemoOrchestrato))]
        public async Task DemoOrchestrato([OrchestrationTrigger] TaskOrchestrationContext context)
        {
            _ = context.DemoExtension();
            await context.CallActivityAsync(nameof(DemoActivity));
        }

        [Function(nameof(DemoActivity))]
        public async Task DemoActivity([ActivityTrigger] FunctionContext context)
        {
            context.GetLogger<Demo>().LogInformation("Hello from DemoActivity");
            await Task.Delay(1);
        }

        [Function(nameof(DemoTrigger))]
        public async Task<HttpResponseData> DemoTrigger(
            [HttpTrigger(AuthorizationLevel.Function, "post")] HttpRequestData req,
            [DurableClient] DurableTaskClient starter,
            FunctionContext context
        )
        {
            context.GetLogger<Demo>().LogInformation("C# HTTP trigger function processed a request.");

            var instanceId = await starter.ScheduleNewOrchestrationInstanceAsync(nameof(DemoOrchestrato));
            return starter.CreateCheckStatusResponse(req, instanceId);
        }
    }