List of parent PIModule objects of the PIModule. Returns a PIModuleList object.
The object placeholder is an object expression that evaluates to a PIModule object.
Since a PIModule object can exist in one or more hierarchical positions, it may have one or more parent PIModule's. Therefore a list is required to show all parents. No parent is preferred over the others.
To insert a PIModule into another place in the hierarchy, use the Insert method of the PIModules collection of the new parent.