code: def __init__(self, optimizer, *args, **kwargs):
      from mmf.utils.general import lr_lambda_update
  
      self._lambda_func = lr_lambda_update
      self._global_config = registry.get("config")
  
      super().__init__(optimizer, self.lr_lambda, *args, **kwargs)
  
file_path: mmf/mmf/modules/schedulers.py
imports: from bisect import bisect_right
  from mmf.common.registry import registry
  from torch.optim.lr_scheduler import LambdaLR
label_desc: Use image node_id 1 to create a new PythiaScheduler object from inherited base classes: LambdaLR with example: obj = PythiaScheduler(optimizer)