code: def update(ind, mu, std):
      for i, mu_i in enumerate(mu):
          ind[i] = random.gauss(mu_i, std)
  
file_path: deap/examples/es/onefifth.py
imports: import array
  import random
  from deap import base
  from deap import creator
  from deap import benchmarks
  from deap import tools
label_desc: Use image node_id 1 for calling a global function with example usage: update(ind, mu, std) without return types