This is class Autodesk.AutoCAD.DatabaseServices.AssocAsmBodyActionParam.

Autodesk.AutoCAD.DatabaseServices.DBObject
    Autodesk.AutoCAD.DatabaseServices.AssocActionParam
        Autodesk.AutoCAD.DatabaseServices.AssocAsmBodyActionParam

Public Class AssocAsmBodyActionParam
Inherits AssocActionParam

public class AssocAsmBodyActionParam : AssocActionParam;