@@ -74,8 +74,8 @@  | 
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| 74 | 74 | /**  | 
                                                        
| 75 | 75 | * Iterates through triplets and calls main converter method  | 
                                                        
| 76 | 76 | *  | 
                                                        
| 77 | - * @param $fres  | 
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| 78 | - * @return array  | 
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| 77 | + * @param string|null $fres  | 
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| 78 | + * @return string  | 
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| 79 | 79 | */  | 
                                                        
| 80 | 80 | public function fetchData($fres): array  | 
                                                        
| 81 | 81 |      {
 |