@BeforeClass
void setupInvocations() throws SecurityException, NoSuchMethodException {
asyncGet = Invocation.create(method(ThingAsyncApi.class, "get"), ImmutableList.of());
asyncNamedGet = Invocation.create(method(ThingAsyncApi.class, "namedGet"), ImmutableList.of());
defaultFallback = new NullOnNotFoundOr404();
}