code: def objective_function(opt):
      time.sleep(0.01)
      score = -(opt["x1"] * opt["x1"])
      return score
  
file_path: Hyperactive/tests/_local_test_optimization_strategies/_test_memory_warm_start_smbo.py
imports: import time
  import pytest
  import numpy
  from hyperactive import Hyperactive
  from hyperactive.optimizers.strategies import CustomOptimizationStrategy
  from hyperactive.optimizers import GridSearchOptimizer
  from ._parametrize import optimizers_smbo
label_desc: Use image node_id 1 for calling a global function with example usage: objective_function(opt) and returns: score