docs: public Datatype.Builder mutateValueTypeAnnotations(Consumer<? super List<Excerpt>> mutator) {
      if (valueTypeAnnotations instanceof ImmutableList) {
        valueTypeAnnotations = new ArrayList<>(valueTypeAnnotations);
      }
      // If addValueTypeAnnotations is overridden, this method will be updated to delegate to it
      mutator.accept(valueTypeAnnotations);
      return (Datatype.Builder) this;
    }