class_docstr: A SSO class, inherited from Optimizer.
  
  This is the designed class to define SSO-related
  variables and methods.
  
  References:
      C. Bae et al. A new simplified swarm optimization (SSO) using exchange local search scheme.
      International Journal of Innovative Computing, Information and Control (2012).
class_docstr_tok: ["A","SSO","class",",","inherited","from","Optimizer",".","This","is","the","designed","class","to","define","SSO-related","variables","and","methods",".","References",":","C.","Bae","et","al",".","A","new","simplified","swarm","optimization","(","SSO",")","using","exchange","local","search","scheme",".","International","Journal","of","Innovative","Computing",",","Information","and","Control","(","2012",")","."]
docstr: Global constant.
docstr_tok: ["Global","constant","."]
code: def C_g(self) -> float:
      """Global constant."""
  
      return self._C_g
  
imports: import copy
  import time
  from typing import Any, Dict, Optional
  import numpy
  import opytimizer.math.random
  import opytimizer.utils.exception
  from opytimizer.core import Optimizer
  from opytimizer.core.function import Function
  from opytimizer.core.space import Space
  from opytimizer.utils import logging
label_desc: Use image node_id 6 for calling the SSO obj's underlying member method code with example usage: obj.C_g() and returns: self