@@ -107,7 +107,7 @@  | 
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| 107 | 107 | *  | 
                                                        
| 108 | 108 | * @param string $relationMethod  | 
                                                        
| 109 | 109 | * @param string $whereInMethod  | 
                                                        
| 110 | - * @param null|callable $constraints  | 
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| 110 | + * @param callable $constraints  | 
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| 111 | 111 | */  | 
                                                        
| 112 | 112 | protected function applyForCurrentRelation(string $relationMethod, string $whereInMethod, callable $constraints): void  | 
                                                        
| 113 | 113 |      { |