class_docstr: An Agent class for all optimization techniques.
class_docstr_tok: ["An","Agent","class","for","all","optimization","techniques","."]
docstr: float: Fitness value.
docstr_tok: ["float",":","Fitness","value","."]
code: def fit(self) -> Union[int, float]:
      """float: Fitness value."""
  
      return self._fit
  
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 8 for calling the Agent obj's underlying member method code with example usage: obj.fit() and returns: self