code: def mutate(dna, dna_size, tune_params):
      
      dna_out = []
      mutation_chance = 10
      for i in range(dna_size):
          if int(random.random()*mutation_chance) == 1:
              dna_out.append(random_val(i, tune_params))
          else:
              dna_out.append(dna[i])
      return dna_out
docs: Mutate DNA with 1/mutation_chance chance