public static async Task RunImpl([OrchestrationTrigger] DurableOrchestrationContext context)
{
// Orchestration code. Here we can schedule all activities
// in any order and just await 'til each one is finished.
var ctx = JsonConvert.DeserializeObject <Event>(context.GetInputAsJson().ToString());
var msg = await context.CallActivityAsync <List <Message> >("AvroDeserializer", ctx.Data.FileUrl);
await context.CallActivityAsync("EventGridSender", msg);
}