code: def test_get_estimator_classifier():
      """Test get_estimator method of Classifier class."""
      classifier = Classifier()
      estimator = classifier.get_estimator()
      assert isinstance(estimator, type(LGBMClassifier()))
  
file_path: MLBox/tests/test_classifier.py
imports: import pytest
  import pandas
  import numpy
  from mlbox.model.classification.classifier import Classifier
  from lightgbm import LGBMClassifier
label_desc: Use image node_id 11 for calling a global function with example usage: test_get_estimator_classifier() without return types