code: def test_init_regressor():
      """Test init method of Regressor class."""
      regressor = Regressor()
      assert regressor._Regressor__strategy == "LightGBM"
      assert regressor._Regressor__regress_params == {}
      assert regressor._Regressor__regressor
      assert not regressor._Regressor__col
      assert not regressor._Regressor__fitOK
  
file_path: MLBox/tests/test_regressor.py
imports: import pytest
  import pandas
  import numpy
  from mlbox.model.regression.regressor import Regressor
  from lightgbm import LGBMRegressor
label_desc: Use image node_id 1 for calling a global function with example usage: test_init_regressor() without return types