code: public BoxRequestsFile.UploadNewVersion getUploadNewVersionRequest(InputStream fileInputStream, String destinationFileId){
          BoxRequestsFile.UploadNewVersion request = new BoxRequestsFile.UploadNewVersion(fileInputStream, getFileUploadNewVersionUrl(destinationFileId), mSession);
          return request;
      }
docs: Gets a request that uploads a new file version from an input stream
  
  @param fileInputStream   input stream of the new file version
  @param destinationFileId id of the file to upload a new version of
  @return  request to upload a new file version from an input stream