code: def test_hello(self):
      particleSwarmOptimization = ParticleSwarmOptimization()
      particleSwarmOptimization.run_pso_demo()
  
file_path: advisor/advisor_server/suggestion/algorithm/particle_swarm_optimization_test.py
imports: import json
  from django.test import TestCase
  from suggestion.models import Study
  from suggestion.models import Trial
  from random_search import RandomSearchAlgorithm
  from particle_swarm_optimization import ParticleSwarmOptimization
label_desc: Use image node_id 5 for calling the RandomSearchAlgorithmTest obj's underlying member method code with example usage: obj.test_hello() without return types