class_docstr: Tests to check primarily that saving a BO model results in a file without errors.
docstr: This was previously an edge-case, when some parameters were vectors, the naming of the columns was incorrect
docstr_tok: ["This","was","previously","an","edge-case",",","when","some","parameters","were","vectors",",","the","naming","of","the","columns","was","incorrect"]
code: def test_save_gp_2d_ard(self):
      """
      This was previously an edge-case, when some parameters were vectors, the naming of the columns was incorrect
      """
      k = GPy.kern.Matern52(input_dim=2, ARD=True)
      m = GPModel(kernel=k)
      myBopt = BayesianOptimization(
          f=self.f_2d, domain=self.domain_2d, model=m
      )
      myBopt.run_optimization(max_iter=1, verbosity=False)
      myBopt.save_models(self.outfile_path)
      self.check_output_model_file(["Iteration"])
  
file_path: GPyOpt/GPyOpt/testing/core_tests/test_save.py
imports: import unittest
  import numpy
  from GPyOpt.methods import BayesianOptimization
  from GPyOpt.models import GPModel
  import GPy
  import tempfile
  import os
label_desc: Use image node_id 7 for calling the TestSaveModel obj's underlying member method code with example usage: obj.test_save_gp_2d_ard() without return types