class_docstr: Wraps multiple callbacks in an ready-to-use class.
docstr: Initialization method.
  
  Args:
      callbacks: List of Callback-based childs.
docstr_tok: ["Initialization","method",".","Args",":","callbacks",":","List","of","Callback-based","childs","."]
code: def __init__(self, callbacks: List[Callback]) -> None:
      """Initialization method.
  
      Args:
          callbacks: List of Callback-based childs.
  
      """
  
      self.callbacks = callbacks or []
  
imports: from typing import List, TypeVar, Union
  import numpy
  import opytimizer.utils.exception
  from opytimizer.core.space import Space
label_desc: Use image node_id 1 to create a new CallbackVessel object  with example: obj = CallbackVessel(callbacks)