yii\mongodb\Collection::find PHP Method

    public function find($condition = [], $fields = [], $options = [])
    {
        if (!empty($fields)) {
            $options['projection'] = $fields;
        }
        return $this->database->createCommand()->find($this->name, $condition, $options);
    }

 /**
  * @inheritdoc
  * @return Cursor cursor for the search results
  */
 public function find($condition = [], $fields = [], $options = [])
 {
     return new Cursor($this, parent::find($condition, $fields, $options));
 }