default String renderGenerics(Generator gen, M model) {
        return gen.onEach(model.getGenerics())
            .collect(joinIfNotEmpty(", ", "<", ">" + genericsSuffix()));
    }
Render the generics-part of the model followed by a space character.

@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/HasGenericsView.java