class_docstr: An Agent class for all optimization techniques.
class_docstr_tok: ["An","Agent","class","for","all","optimization","techniques","."]
docstr: Upper bounds.
docstr_tok: ["Upper","bounds","."]
code: def ub(self) -> np.ndarray:
      """Upper bounds."""
  
      return self._ub
  
imports: import time
  from typing import Dict, List, Optional, Union
  import numpy
  import opytimizer.math.random
  import opytimizer.utils.constant
  import opytimizer.utils.exception
  from opytimizer.utils import logging
label_desc: Use image node_id 12 for calling the Agent obj's underlying member method code with example usage: obj.ub() and returns: self