code: def test_js_motion_a():
      search_space = search.SearchSpace(
          n_agents=10,
          n_variables=2,
          lower_bound=[0, 0],
          upper_bound=[10, 10],
      )
  
      new_js = js.JS()
      new_js.compile(search_space)
  
      motion = new_js._motion_a(0, 1)
  
      assert motion[0] != 0
  
file_path: opytimizer/tests/opytimizer/optimizers/swarm/test_js.py
imports: import numpy
  from opytimizer.optimizers.swarm import js
  from opytimizer.spaces import search
label_desc: Use image node_id 6 for calling a global function with example usage: test_js_motion_a() without return types