public SuggestRequestBuilder addTag(final String tag) {
        request.addTag(tag);
        return this;
    }

    public SuggestRequestBuilder addRole(final String role) {
        request.addRole(role);
        return this;
    }

    public SuggestRequestBuilder addField(final String field) {
        request.addField(field);
        return this;
    }

    public SuggestRequestBuilder addKind(final String kind) {