code: def test_isa_params_setter():
      new_isa = isa.ISA()
  
      try:
          new_isa.w = "a"
      except:
          new_isa.w = 0.7
  
      try:
          new_isa.w = -1
      except:
          new_isa.w = 0.7
  
      assert new_isa.w == 0.7
  
      try:
          new_isa.tau = "b"
      except:
          new_isa.tau = 0.3
  
      try:
          new_isa.tau = -1
      except:
          new_isa.tau = 0.3
  
      assert new_isa.tau == 0.3
  
file_path: opytimizer/tests/opytimizer/optimizers/social/test_isa.py
imports: import numpy
  from opytimizer.optimizers.social import isa
  from opytimizer.spaces import search
  from opytimizer.utils import constant
label_desc: Use image node_id 2 for calling a global function with example usage: test_isa_params_setter() without return types