code: def ft_del record:
        doc_id = record.to_global_id
        REDI_SEARCH.call('FT.DEL', @index_name, doc_id)
      rescue Exception => e
        Rails.logger.error e if defined? Rails
        return e.message
      end
docs: delete specific document from index
  
   @param record [Object] Object to delete
   @return [String]