@NotNull
  @ExtendClass(instantiatable = false)
  @Convert(PluginPsiClassConverter.class)
  GenericDomValue<PsiClass> getInterfaceClass();
@NotNull
  @ExtendClass(instantiatable = false)
  @Convert(PluginPsiClassConverter.class)
  GenericDomValue<PsiClass> getInterfaceClass()