code: def test_create_direct_optimizer(self):
      optimizer = choose_optimizer(
          "DIRECT", self.design_space.get_bounds()
      )
  
      self.assertIsNotNone(optimizer)
  
file_path: GPyOpt/GPyOpt/testing/optimization_tests/test_optimizer_creation.py
imports: import numpy
  import unittest
  from GPyOpt.core.errors import InvalidVariableNameError
  from GPyOpt.core.task.space import Design_space
  from GPyOpt.optimization.optimizer import choose_optimizer
label_desc: Use image node_id 4 for calling the TestOptimizerCreation obj's underlying member method code with example usage: obj.test_create_direct_optimizer() without return types