Method beforeSetLanguage

src/code/LivePreview.mjs:210–212

* Triggered before the language config gets changed * @param {String} value * @param {String} oldValue * @returns {String} * @protected

(value, oldValue)

     * @protected
     */
    beforeSetLanguage(value, oldValue) {
        return this.beforeSetEnumValue(value, oldValue, 'language')
    }

    /**
     * @param {Object} data