text: from dataclasses import dataclass
  
  from optmlstat.opt.iteration import Iteration
  
  
  @dataclass()
  class LearningRateStrategy:
      """
      Learning rate strategy. This class is a default one; a constant learning rate.
      """
  
      constant_learning_rate: float
  
      def get_learning_rate(self, iteration: Iteration) -> float:
          return self.constant_learning_rate
  