code: function(properties, raw_properties) {
  
  		if (Lava.schema.data.VALIDATE_IMPORT_DATA && !this.isValidValue(raw_properties[this._name]))
  			Lava.t('Invalid value in import data (' + this._name + '): ' + raw_properties[this._name]);
  
  		return raw_properties[this._name];
  
  	}
docs: Helper method for importing values from server-side data. Performs validation
  @param {Object} properties
  @param {Object} raw_properties
  @returns {*}