@UnstableApi
    static <V> JsonConditionalResponseAs<V> json(
            TypeReference<? extends V> typeRef, Predicate<AggregatedHttpResponse> predicate) {
        return json(typeRef, OBJECT_MAPPER, predicate);
    }
Aggregates an {@link HttpResponse} and deserializes the JSON {@link AggregatedHttpResponse#content()}
into the specified Java type using the default {@link ObjectMapper}.

@see JacksonObjectMapperProvider
core/src/main/java/com/linecorp/armeria/client/ResponseAs.java