code: def get_lr_(self, progress):
      return 1.0
  
imports: import math
  import torch
  from torch.optim.optimizer import Optimizer
  from torch.nn.utils import clip_grad_norm_
  import logging
  import abc
  import sys
label_desc: Use image node_id 1 for calling the ConstantLR obj's underlying member method code with example usage: obj.get_lr_(progress) and returns: int