code: public function setSort($value)
      {
          if (is_array($value)) {
              $config = ['class' => Sort::className()];
              if ($this->id !== null) {
                  $config['sortParam'] = $this->id . '-sort';
              }
              $this->_sort = Yii::createObject(array_merge($config, $value));
          } elseif ($value instanceof Sort || $value === false) {
              $this->_sort = $value;
          } else {
              throw new InvalidArgumentException('Only Sort instance, configuration array or false is allowed.');
          }
      }
docs: Sets the sort definition for this data provider.
  @param array|Sort|bool $value the sort definition to be used by this data provider.
  This can be one of the following:
  
  - a configuration array for creating the sort definition object. The "class" element defaults
  to 'yii\data\Sort'
  - an instance of [[Sort]] or its subclass
  - false, if sorting needs to be disabled.
  
  @throws InvalidArgumentException