class_docstr: A WEO class, inherited from Optimizer.
  
  This is the designed class to define WEO-related
  variables and methods.
  
  References:
      A. Kaveh and T. Bakhshpoori.
      Water Evaporation Optimization: A novel physically inspired optimization algorithm.
      Computers & Structures (2016).
code: def E_min(self, E_min: float) -> None:
      if not isinstance(E_min, (float, int)):
          raise e.TypeError("`E_min` should be a float or integer")
  
      self._E_min = E_min
  
imports: import copy
  from typing import Any, Dict, Optional
  import numpy
  import opytimizer.math.random
  import opytimizer.utils.constant
  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 3 for calling the WEO obj's underlying member method code with example usage: obj.E_min(E_min) without return types