class_docstr: Blackbox Optimiser Class. 
class_docstr_tok: ["Blackbox","Optimiser","Class","."]
docstr: Description of the problem. 
docstr_tok: ["Description","of","the","problem","."]
code: def _get_problem_str(self):
      """Description of the problem."""
      return "Optimisation"
  
imports: from __future__ import division
  from argparse import Namespace
  import numpy
  from ..exd.exd_core import ExperimentDesigner, exd_core_args
  from ..utils.option_handler import load_options
label_desc: Use image node_id 5 for calling the BlackboxOptimiser obj's underlying member method code with example usage: obj._get_problem_str() and returns: str