<<rule>> Create: Transient Bidirectional Reference
<<preserve>>
toClassA : EClass
<<create>>
newRefB : EReference
<<create>> transient = "true"
<<preserve>>
toClassB : EClass
<<create>>
newRefA : EReference
<<create>> transient = "true"
<<create>>
eType
<<create>>
eOpposite
<<create>>
eType
<<create>>
eOpposite
<<create>>
eContainingClass
eStructuralFeatures
<<create>>
eContainingClass
eStructuralFeatures