code: def test_space_n_variables_setter():
      try:
          new_space = space.Space(n_variables=0.0)
      except:
          new_space = space.Space(n_variables=1)
  
      try:
          new_space = space.Space(n_variables=0)
      except:
          new_space = space.Space(n_variables=1)
  
      assert new_space.n_variables == 1
  
imports: import numpy
  import pytest
  from opytimizer.core import agent, space
label_desc: Use image node_id 4 for calling a global function with example usage: test_space_n_variables_setter() without return types