code: def test_kh_target_alpha():
      search_space = search.SearchSpace(
          n_agents=5,
          n_variables=2,
          lower_bound=[0, 0],
          upper_bound=[10, 10],
      )
  
      new_kh = kh.KH()
      new_kh.compile(search_space)
  
      alpha = new_kh._target_alpha(
          search_space.agents[0],
          search_space.agents[-1],
          search_space.agents[0],
          1,
      )
  
      assert alpha.shape == (2, 1) or alpha == 0
  
imports: import numpy
  from opytimizer.optimizers.swarm import kh
  from opytimizer.spaces import search
label_desc: Use image node_id 8 for calling a global function with example usage: test_kh_target_alpha() without return types