TimeDimensionService.getDefaultTimeHierarchy Method
        
 Gets the time hierarchy by the given ID.
 
         
        Parameters
        
            - projectId
            
 
            - 
                
(optional) The project ID to use to get the default time hierarchy.
                
Optional: True 
        
        Return Value
        
Type: jQuery.Promise
        
Value: dundas.data.Hierarchy
        
A promise object that is resolved when the call is complete.
 If successful, the dundas.data.Hierarchy is returned.