The id of the StartChildWorkflowExecutionInitiated event corresponding to the StartChildWorkflowExecutionDecision to
            start this workflow execution. The source event with this Id can be found in the history of the source workflow execution. This information
            can be useful for diagnosing problems by tracing back the chain of events leading up to this event.
             
            
 Declaration Syntax
 Declaration Syntax| C# | 
public long ParentInitiatedEventId { get; set; }