/**
     * Get the value for the key 'thumbnail.generator.interval'. <br>
     * The value is, e.g. 0 <br>
     * comment: Interval for thumbnail generator.
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getThumbnailGeneratorInterval();

    /**
     * Get the value for the key 'thumbnail.generator.interval' as {@link Integer}. <br>

overflow: hidden;\n  text-overflow: ellipsis;\n  white-space: nowrap;\n}\n",".vr {\n  display: inline-block;\n  align-self: stretch;\n  width: 1px;\n  min-height: 1em;\n  background-color: currentcolor;\n  opacity: $hr-opacity;\n}\n","// Utility generator\n// Used to generate utilities & print utilities\n@mixin generate-utility($utility, $infix: \"\", $is-rfs-media-query: false) {\n  $values: map-get($utility, values);\n\n  // If the values are a list or string, convert it into a map\n  @if type-of($values)...