code: def test_sbo_params_setter():
      new_sbo = sbo.SBO()
  
      try:
          new_sbo.alpha = "a"
      except:
          new_sbo.alpha = 0.75
  
      try:
          new_sbo.alpha = -1
      except:
          new_sbo.alpha = 0.75
  
      assert new_sbo.alpha == 0.75
  
      try:
          new_sbo.p_mutation = "b"
      except:
          new_sbo.p_mutation = 0.05
  
      try:
          new_sbo.p_mutation = 1.5
      except:
          new_sbo.p_mutation = 0.05
  
      assert new_sbo.p_mutation == 0.05
  
      try:
          new_sbo.z = "c"
      except:
          new_sbo.z = 0.02
  
      try:
          new_sbo.z = 1.5
      except:
          new_sbo.z = 0.02
  
      assert new_sbo.z == 0.02
  
imports: import numpy
  from opytimizer.optimizers.swarm import sbo
  from opytimizer.spaces import search
label_desc: Use image node_id 2 for calling a global function with example usage: test_sbo_params_setter() without return types