@@ -387,7 +387,7 @@  | 
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| 387 | 387 | *  | 
                                                        
| 388 | 388 | * @return string The base URL to call  | 
                                                        
| 389 | 389 | */  | 
                                                        
| 390 | - protected static function apiEndpoint ($apiPrefix = NULL)  | 
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| 390 | + protected static function apiEndpoint ($apiPrefix = null)  | 
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| 391 | 391 |      { | 
                                                        
| 392 | 392 | $apiSection = isset($apiPrefix) ? $apiPrefix : static::API_PREFIX;  | 
                                                        
| 393 | 393 | |