code: def main():
      """Main function."""
      disc_euc_items = list(np.random.random((1000, 3)))
      domain_vars = [
          {"type": "discrete_euclidean", "items": disc_euc_items},
          {"type": "float", "min": 0, "max": 11, "dim": 2},
          {"type": "int", "min": 0, "max": 114},
      ]
      config_params = {"domain": domain_vars}
      config = load_config(config_params)
      max_num_evals = 100
      opt_val, opt_pt, history = maximise_function(
          hartmann6_3, config.domain, max_num_evals, config=config
      )
      print(opt_pt, opt_val)
  
label_desc: Use image node_id 2 for calling a global function with example usage: main() without return types