code: def sample_independent(
      self, study, trial, param_name, param_distribution
  ):
      independent_sampler = optuna.samplers.RandomSampler()
      return independent_sampler.sample_independent(
          study, trial, param_name, param_distribution
      )
  
file_path: optuna/tutorial/20_recipes/005_user_defined_sampler.py
imports: import numpy
  import optuna
label_desc: Use image node_id 4 for calling the SimulatedAnnealingSampler obj's underlying member method code with example usage: obj.sample_independent(study, trial, param_name, param_distribution) and returns: independent_sampler