code: def has_old_rnns():
      try:
          torch.nn.backends.thnn.backend.LSTMCell
          return True
      except:
          return False
  
file_path: apex/apex/amp/rnn_compat.py
imports: from .None import utils, wrap
  import torch
label_desc: Use image node_id 2 for calling a global function with example usage: has_old_rnns() and returns: True, False