@@ -43,7 +43,7 @@ discard block  | 
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| 43 | 43 | /**  | 
                                                        
| 44 | 44 | * @param $due_date  | 
                                                        
| 45 | 45 | *  | 
                                                        
| 46 | - * @return mixed  | 
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| 46 | + * @return string  | 
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| 47 | 47 | */  | 
                                                        
| 48 | 48 | private function makeDueDatePretty($due_date)  | 
                                                        
| 49 | 49 |      { | 
                                                        
@@ -53,7 +53,7 @@ discard block  | 
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| 53 | 53 | /**  | 
                                                        
| 54 | 54 | * @param $user  | 
                                                        
| 55 | 55 | * @param $training  | 
                                                        
| 56 | - * @param $dueDate  | 
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| 56 | + * @param string $dueDate  | 
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| 57 | 57 | * @param $trainingUser  | 
                                                        
| 58 | 58 | */  | 
                                                        
| 59 | 59 | private function sendEmail($user, $training, $dueDate, $trainingUser)  |