code: def objective_function(opt):
      score = -opt["x1"] * opt["x1"]
      return score
  
file_path: Hyperactive/tests/_local_test_timings/_test_warm_start.py
imports: import time
  import pytest
  import numpy
  import pandas
  from hyperactive import Hyperactive
  from ._search_space_list import search_space_setup
label_desc: Use image node_id 1 for calling a global function with example usage: objective_function(opt) and returns: score