code: public BoxRequestsFile.CopyFile getCopyRequest(String id, String parentId) {
          BoxRequestsFile.CopyFile request = new BoxRequestsFile.CopyFile(id, parentId, getFileCopyUrl(id), mSession);
          return request;
      }
docs: Gets a request that copies a file
  
  @param id    id of the file to copy
  @param parentId  id of the parent folder to copy the file into
  @return  request to copy a file