docs: def main():
      """Main part of the download script."""
      # Read config file. This has to get updated via git
      project_root = utils.get_project_root()
      infofile = os.path.join(project_root, "raw-datasets/info.yml")
      logging.info("Read '%s'...", infofile)
      with open(infofile, 'r') as ymlfile:
          datasets = yaml.load(ymlfile)
      for dataset in datasets:
          local_path_file = os.path.join(project_root, dataset['online_path'])
          i = 0
          while not is_file_consistent(local_path_file, dataset['md5']) and i < 3:
              if os.path.isfile(local_path_file):
                  local_file_size = os.path.getsize(local_path_file)
                  logging.info("MD5 codes differ. ")
                  logging.info("The file size of the downloaded file is %s.",
                               utils.sizeof_fmt(local_file_size))
              logging.info("Download the file '%s'...", dataset['online_path'])
              urllib.urlretrieve(dataset['url'], local_path_file)
              i += 1
          if i < 10:
              logging.info("Found '%s'.", dataset['online_path'])