code: def test_adaptive_graphical_lasso():
      return check_estimator(AdaptiveGraphicalLasso())
  
imports: from sklearn.utils.estimator_checks import check_estimator
  from inverse_covariance import QuicGraphicalLasso, QuicGraphicalLassoCV, QuicGraphicalLassoEBIC, AdaptiveGraphicalLasso, ModelAverage
label_desc: Use image node_id 4 for calling a global function with example usage: test_adaptive_graphical_lasso() and returns: check_estimator