code: def test_bart_cfg_registry():
      assert len(bart_cfg_reg.list_keys()) > 0
  
file_path: gluon-nlp/tests/test_models_bart.py
imports: import pytest
  import mxnet
  import tempfile
  import numpy
  import numpy.testing
  from gluonnlp.models.bart import BartModel, list_pretrained_bart, get_pretrained_bart, bart_cfg_reg
  from gluonnlp.utils.testing import verify_backbone_fp16
label_desc: Use image node_id 3 for calling a global function with example usage: test_bart_cfg_registry() without return types