code: def lookup_indices_2d(
      self, values: List[List[str]]
  ) -> List[List[int]]:
      result: List[List[int]] = []
      for value in values:
          result.append(self.lookup_indices_1d(value))
      return result
  
file_path: pytext/pytext/torchscript/vocab.py
imports: from typing import Dict, List, Optional
  import torch
  import torch.nn
  from pytext.common.constants import SpecialTokens
label_desc: Use image node_id 5 for calling the ScriptVocabulary obj's underlying member method code with example usage: obj.lookup_indices_2d(values) and returns: result