assertArgumentNotNull("fromClass", fromClass);

        if (toClass == Object.class && !fromClass.isPrimitive()) {
            return true;
        }
        if (toClass.isPrimitive()) {
            fromClass = getPrimitiveClassIfWrapper(fromClass);
        }
        return toClass.isAssignableFrom(fromClass);
    }

    /**
     * Converts a wrapper class to its corresponding primitive class.
     *

            return OptionalThing.empty();

        }

        @Override

        public void makeEmlFile(String fileName) {

        }

        @Override

        public String toHash() {

            return "mock-hash";

        }

        @Override
        public String toDisplay() {

            return "mock-display";

        }

        @Override