@@ -371,7 +371,7 @@  | 
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| 371 | 371 | 'contentType' => $this->contentType,  | 
                                                        
| 372 | 372 | 'attachments' => $this->attachments,  | 
                                                        
| 373 | 373 | 'priority' => $this->priority,  | 
                                                        
| 374 | - 'attributes' => $this->attributes ,  | 
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| 374 | + 'attributes' => $this->attributes,  | 
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| 375 | 375 | 'headers' => $this->headers  | 
                                                        
| 376 | 376 | ];  | 
                                                        
| 377 | 377 | }  |