class_docstr: Class for optimisation based on Genetic algorithms. 
class_docstr_tok: ["Class","for","optimisation","based","on","Genetic","algorithms","."]
docstr: Build new optimisation model. 
docstr_tok: ["Build","new","optimisation","model","."]
code: def _child_build_new_model(self):
      """Build new optimisation model."""
      pass
  
imports: from argparse import Namespace
  from numpy.random import choice
  from .blackbox_optimiser import BlackboxOptimiser, blackbox_opt_args
  from ..utils.general_utils import sample_according_to_exp_probs
  from ..utils.option_handler import get_option_specs, load_options
label_desc: Use image node_id 5 for calling the GAOptimiser obj's underlying member method code with example usage: obj._child_build_new_model() without return types