@PublicAPI(usage = ACCESS)
    public JavaClasses importPackagesOf(Class<?>... classes) {
        return importPackagesOf(ImmutableSet.copyOf(classes));
    }
@Test
    public void creates_JavaPackages_for_each_JavaClass() {
        JavaClasses classes = new ClassFileImporter().importPackagesOf(getClass());

        JavaPackage javaPackage = classes.get(SomeClass.class).getPackage();

        assertThat(javaPackage.containsClass(SomeEnum.class)).as("Package contains " + SomeEnum.class).isTrue();
        assertThatTypes(javaPackage.getParent().get().getClasses()).contain(getClass());
    }