code: def test_regression_pseudofilter():
      y_reg_fake = np.random.rand(200)
      y_reg_fake = pandas.Series(data=y_reg_fake)
  
      sample_percent, _, _, _ = get_default_pseudo_test_args()
      pseudo_idxes = filter_pseudo(
          y_reg_fake, problem_type="regression"
      )
      assert len(pseudo_idxes) == int(sample_percent * len(y_reg_fake))
  
file_path: autogluon/tabular/tests/unittests/pseudolabel/pseudo_filter.py
imports: import inspect
  import numpy
  import pandas
  import pandas
  from autogluon.core.pseudolabeling.pseudolabeling import filter_pseudo
label_desc: Use image node_id 3 for calling a global function with example usage: test_regression_pseudofilter() without return types