class_docstr: An order criteria for waiting a certain amount of time for execution.
  
  Parameters
  ----------
  duration : float
      The amount of time to wait.
class_docstr_tok: ["An","order","criteria","for","waiting","a","certain","amount","of","time","for","execution",".","Parameters","--","--","--","--","--","duration",":","float","The","amount","of","time","to","wait","."]
code: def __str__(self):
      return f"<Timed: duration={self.duration}>"
  
imports: import operator
  from abc import abstractmethod, ABCMeta
  from typing import Callable, Union, TypeVar
  from enum import Enum
  from tensortrade.oms.orders import TradeSide, Order
  from tensortrade.oms.exchanges import Exchange
label_desc: Use image node_id 3 for calling the Timed obj's underlying member method code with example usage: obj.__str__() and returns: str, self, str