question: public final void addRequiredImports ( Set < DeclaredTypeName > imports ) { imports . add ( TypeConstants . PROPERTY ) ; imports . add ( TypeConstants . VALUES_STORAGE ) ; imports . add ( getModelSuperclass ( ) ) ; for ( PropertyGenerator generator : propertyGenerators ) { generator . registerRequiredImports ( imports ) ; } addModelSpecificImports ( imports ) ; pluginBundle . addRequiredImports ( imports ) ; }
target:  Adds imports required by this model spec to the given accumulator set