class_docstr: A CS class, inherited from Optimizer.
  
  This is the designed class to define CS-related
  variables and methods.
  
  References:
      X.-S. Yang and D. Suash. Cuckoo search via Lévy flights.
      World Congress on Nature & Biologically Inspired Computing (2009).
class_docstr_tok: ["A","CS","class",",","inherited","from","Optimizer",".","This","is","the","designed","class","to","define","CS-related","variables","and","methods",".","References",":","X.-S.","Yang","and","D.","Suash",".","Cuckoo","search","via","L\u00e9vy","flights",".","World","Congress","on","Nature","&","Biologically","Inspired","Computing","(","2009",")","."]
docstr: Step size.
docstr_tok: ["Step","size","."]
code: def alpha(self) -> float:
      """Step size."""
  
      return self._alpha
  
imports: import copy
  from typing import Any, Dict, List, Optional
  import numpy
  import opytimizer.math.distribution
  import opytimizer.math.random
  import opytimizer.utils.exception
  from opytimizer.core import Optimizer
  from opytimizer.core.agent import Agent
  from opytimizer.core.function import Function
  from opytimizer.core.space import Space
  from opytimizer.utils import logging
label_desc: Use image node_id 2 for calling the CS obj's underlying member method code with example usage: obj.alpha() and returns: self