{                                                                                               
   "error": {                                                                                   
      "code": "UnprocessableType",                                                              
      "message": "Cannot process input of abstract type 'Microsoft.OutlookServices.Attachment'",
      "innerError": {                                                                           
         "request-id": "request_id_string",                                  
         "date": "date_string"                                                          
      }                                                                                         
   }                                                                                            
}