content: import logging
  
  from mmcv.utils import get_logger
  
  
  def get_root_logger(log_file=None, log_level=logging.INFO):
      """Use ``get_logger`` method in mmcv to get the root logger.
  
      The logger will be initialized if it has not been initialized. By default a
      StreamHandler will be added. If ``log_file`` is specified, a FileHandler
      will also be added. The name of the root logger is the top-level package
      name, e.g., "mmaction".
  
      Args:
          log_file (str | None): The log filename. If specified, a FileHandler
              will be added to the root logger.
          log_level (int): The root logger level. Note that only the process of
              rank 0 is affected, while other processes will set the level to
              "Error" and be silent most of the time.
  
      Returns:
          :obj:`logging.Logger`: The root logger.
      """
      return get_logger(__name__.split('.')[0], log_file, log_level)
  