@interface ExternalSequenceNumberToAttachmentNoteBodyToAttachmentMigrationPolicy : NSEntityMigrationPolicy - (BOOL)endEntityMapping:(id)a0 manager:(id)a1 error:(id *)a2; - (BOOL)createDestinationInstancesForSourceInstance:(id)a0 entityMapping:(id)a1 manager:(id)a2 error:(id *)a3; - (BOOL)createRelationshipsForDestinationInstance:(id)a0 entityMapping:(id)a1 manager:(id)a2 error:(id *)a3; - (id)unarchiveObjectWithExternalRepresentation:(id)a0; @end