@@ -107,7 +107,7 @@  | 
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| 107 | 107 | |
| 108 | 108 | /**  | 
                                                        
| 109 | 109 | * Validates that the subject is an unempty string  | 
                                                        
| 110 | - * @param mixed $subject The value to check  | 
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| 110 | + * @param string $subject The value to check  | 
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| 111 | 111 | * @return void  | 
                                                        
| 112 | 112 | */  | 
                                                        
| 113 | 113 |      private function checkSubject($subject) { | 
                                                        
@@ -31,7 +31,7 @@  | 
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| 31 | 31 | * @param callable|string $cb The value that you want to wrap in a closure  | 
                                                        
| 32 | 32 | * @return callable  | 
                                                        
| 33 | 33 | */  | 
                                                        
| 34 | -    private function wrapValueInClosure($cb){ | 
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| 34 | +    private function wrapValueInClosure($cb) { | 
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| 35 | 35 |          if (is_callable($cb)) { | 
                                                        
| 36 | 36 | return $cb;  | 
                                                        
| 37 | 37 |          } else { |