An object that represents characteristics of several kinds of type. 
   Namespace:   Autodesk.Revit.DB  
  Assembly:   RevitAPI  (in RevitAPI.dll) Version: 16.0.0.0 (16.0.0.0) 
Syntax
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Remarks
 This object provides access to structural layering components for any object derived from it, such as wall types and floor types. 
 Inheritance Hierarchy
  System Object  
Autodesk.Revit.DB Element
Autodesk.Revit.DB ElementType
Autodesk.Revit.DB HostObjAttributes
Autodesk.Revit.DB BuildingPadType
Autodesk.Revit.DB CeilingType
Autodesk.Revit.DB CurtainSystemType
Autodesk.Revit.DB FloorType
Autodesk.Revit.DB HostedSweepType
Autodesk.Revit.DB MEPCurveType
Autodesk.Revit.DB RoofType
Autodesk.Revit.DB WallFoundationType
Autodesk.Revit.DB WallType
 
 Autodesk.Revit.DB Element
Autodesk.Revit.DB ElementType
Autodesk.Revit.DB HostObjAttributes
Autodesk.Revit.DB BuildingPadType
Autodesk.Revit.DB CeilingType
Autodesk.Revit.DB CurtainSystemType
Autodesk.Revit.DB FloorType
Autodesk.Revit.DB HostedSweepType
Autodesk.Revit.DB MEPCurveType
Autodesk.Revit.DB RoofType
Autodesk.Revit.DB WallFoundationType
Autodesk.Revit.DB WallType