code: def _get_embedding_dir(tag, global_step=None):
      if global_step is None:
          return tag
      else:
          return tag + "_" + str(global_step).zfill(6)
  
file_path: mxboard/python/mxboard/utils.py
imports: from __future__ import absolute_import
  import os
  import logging
  import numpy
  from mxnet.ndarray import NDArray, op
  from mxnet.ndarray import ndarray
  from mxnet.context import current_context
label_desc: Use image node_id 9 for calling a global function with example usage: _get_embedding_dir(tag, global_step) and returns: tag, unknown