Method attachment

moco-core/src/main/java/com/github/dreamhead/moco/Moco.java:682–686

(final String filename, final Resource resource)

    }

    public static ResponseHandler attachment(final String filename, final Resource resource) {
        return AndResponseHandler.and(
                with(header(HttpHeaders.CONTENT_DISPOSITION, format("attachment; filename=%s", checkNotNullOrEmpty(filename, "Filename should not be null or empty")))),
                with(checkNotNull(resource, "Resource should not be null")));
    }

    public static ResponseHandler join(final MocoGroup group) {
        return new JoinResponseHandler(checkNotNull(group, "group should not be empty"));