code: def get_torch_lr_schedulers() -> List[str]:
      # Not type annotated and default is None (i.e unable to infer valid annotation)
      return [
          name
          for name in dir(torch.optim.lr_scheduler)
          if is_torch_lr_scheduler(
              getattr(torch.optim.lr_scheduler, name)
          )
      ]
  
file_path: ReAgent/reagent/optimizer/scheduler_union.py
imports: import logging
  from typing import List
  import reagent.optimizer.uninferrable_schedulers
  import torch
  from reagent.core.configuration import make_config_class, param_hash
  from reagent.core.fb_checker import IS_FB_ENVIRONMENT
  from reagent.core.tagged_union import TaggedUnion
  from .scheduler import LearningRateSchedulerConfig
  from .utils import is_torch_lr_scheduler
label_desc: Use image node_id 1 for calling a global function with example usage: get_torch_lr_schedulers() and returns: unknown