default List<String> getAdditionalProjections(TransformContext context) {
        return ListUtils.of();
    }
Allows the composition of projections by returning additional
projections to run after the current one.

@param context Transformation context.
@return a collection of named projections to run.
@throws IllegalArgumentException if the arguments are invalid.
smithy-build/src/main/java/software/amazon/smithy/build/ProjectionTransformer.java