code: public BoxRequestsFile.RestoreTrashedFile getRestoreTrashedFileRequest(String id) {
          BoxRequestsFile.RestoreTrashedFile request = new BoxRequestsFile.RestoreTrashedFile(id, getFileInfoUrl(id), mSession);
          return request;
      }
docs: Gets a request that restores a trashed file
  
  @param id        id of file to restore
  @return      request to restore a file from the trash