This method will return the reference for the given fabrication id. 
Namespace: Autodesk.Revit.DB.Steel
Assembly: RevitAPI (in RevitAPI.dll) Version: 24.0.0.0 (24.0.0.0)
Since:  2019 
Syntax
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Parameters
- aDoc
 - Type: Autodesk.Revit.DBDocument
Document in which to search for the reference. 
- guid
 - Type: SystemGuid
The fabrication id for which a reference is required. 
Return Value
The reference to the element or subelement corresponding to the given id.Exceptions
| Exception | Condition | 
|---|---|
| Autodesk.Revit.ExceptionsArgumentNullException | A non-optional argument was null |