docs: function completeTask(task, callback) {
      database.serialize(function() {
        var delete_task = "DELETE FROM "+table_name+" WHERE "+table_name+".id = ?";
  
        log.debug('sqlite-adapter','Running query:',delete_task);
        database.run(delete_task, task.id, function(error) {
          if (error) {
            callback(error);
          }
          callback(error, this.changes);
        });
      });
    }