code: def test_opytimizer_load():
      new_opytimizer = opytimizer.Opytimizer.load("out.pkl")
  
      assert type(new_opytimizer).__name__ == "Opytimizer"
  
imports: import opytimizer
  from opytimizer.core import function
  from opytimizer.optimizers.swarm import pso
  from opytimizer.spaces import search
  from opytimizer.utils import callback, history
label_desc: Use image node_id 19 for calling a global function with example usage: test_opytimizer_load() without return types