code: def len_filt(x):
      return 5 < len(x.word[0]) < 40
  
file_path: pytorch-struct/examples/bert-dep.py
imports: import torchtext
  import torch
  from torch import nn
  from torch_struct import DependencyCRF
  from torch_struct.data import SubTokenizedField, ConllXDataset, TokenBucket
  from torchtext.data import RawField, BucketIterator
  from pytorch_transformers import BertModel, BertTokenizer, AdamW, WarmupLinearSchedule
label_desc: Use image node_id 2 for calling a global function with example usage: len_filt(x) and returns: unknown