code: def _log_once(msg):
      logger.info(msg)
  
file_path: tensorpack/tensorpack/models/regularize.py
imports: import re
  import tensorflow
  from ..compat import tfv1
  from ..tfutils.common import get_tf_version_tuple
  from ..tfutils.tower import get_current_tower_context
  from ..utils import logger
  from ..utils.argtools import graph_memoized
  from .common import layer_register
label_desc: Use image node_id 1 for calling a global function with example usage: _log_once(msg) without return types