pattern = Pattern.compile(getUserCodePattern());
            propMap.put(USER_CODE_PATTERN, pattern);
        }
        return pattern.matcher(userCode).matches();
    }

    String getQueryCollapseInnerHitsSorts();

    @SuppressWarnings("rawtypes")
    default OptionalThing<SortBuilder[]> getQueryCollapseInnerHitsSortBuilders() {
        @SuppressWarnings("unchecked")

     * The value is, e.g.  <br>
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getQueryCollapseInnerHitsSorts();

    /**
     * Get the value for the key 'query.collapse.inner.hits.sorts' as {@link Integer}. <br>
     * The value is, e.g.  <br>