@Override
        public Void mapShape(MapShape shape) {
            shape.accept(new SetterVisitor("values"));
            return null;
        }
Generates a static builder for a Java class.

<p>In addition to the static builder class, this generator will create
{@code builder()} and {@code toBuilder()} methods for the target class.
smithy-trait-codegen/src/main/java/software/amazon/smithy/traitcodegen/generators/BuilderGenerator.java