https://learn.microsoft.com/pt-br/dotnet/api/system.activities.asynccodeactivity-1.beginexecute?view=netframework-4.8.1
AsyncCodeActivityTResult.BeginExecute Method (System.Activities) | Microsoft Learn
When implemented in a derived class and using the specified execution context, callback method, and user state, enqueues an asynchronous activity in a run-time...
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