default String renderInitalizers(Generator gen, M model) {
        return gen.onEach(model.getInitializers())
            .collect(Collectors.joining(Formatting.dnl()));
    }
Render the initalizers-part of the model separated by two new-line 
characters.

@param gen    the generator
@param model  the model
@return       the generated code
common-parent/codegen/src/main/java/com/speedment/common/codegen/internal/java/view/trait/HasInitializersView.java