code: public static DocumentPermissionDeleter deleter(final String pathServiceSid, 
                                                      final String pathDocumentSid, 
                                                      final String pathIdentity) {
          return new DocumentPermissionDeleter(pathServiceSid, pathDocumentSid, pathIdentity);
      }
docs: Create a DocumentPermissionDeleter to execute delete.
  
  @param pathServiceSid Sync Service Instance SID or unique name.
  @param pathDocumentSid Sync Document SID or unique name.
  @param pathIdentity Identity of the user to whom the Sync Document
  Permission applies.
  @return DocumentPermissionDeleter capable of executing the delete