code: def main(_config, _log):
      # main is the commandline entry for user w/o coding
      c = MaskRCNNEstimator(_config, _log)
      c.fit()
  
imports: import os
  import gluoncv
  from gluoncv.auto.estimators.mask_rcnn import MaskRCNNEstimator
  from gluoncv.auto.estimators.mask_rcnn import ex
label_desc: Use image node_id 1 for calling a global function with example usage: main(_config, _log) without return types