code: def test_list_pretrained_xlmr():
      assert len(list_pretrained_xlmr()) > 0
  
imports: import pytest
  import numpy
  import mxnet
  import tempfile
  from gluonnlp.models.xlmr import XLMRModel, list_pretrained_xlmr, get_pretrained_xlmr
  from gluonnlp.loss import LabelSmoothCrossEntropyLoss
label_desc: Use image node_id 1 for calling a global function with example usage: test_list_pretrained_xlmr() without return types