code: def get_meta(self) -> FieldMeta:
      meta = FieldMeta()
      if self.use_vocab:
          meta.vocab_size = len(self.vocab)
          meta.vocab = self.vocab
          if self.pad_token is not None:
              meta.pad_token_idx = self.vocab.stoi[self.pad_token]
          if self.unk_token is not None:
              meta.unk_token_idx = self.vocab.stoi[self.unk_token]
          if self.init_token is not None:
              meta.init_token_idx = self.vocab.stoi[self.init_token]
          if self.eos_token is not None:
              meta.eos_token_idx = self.vocab.stoi[self.eos_token]
      if hasattr(self, "dummy_model_input"):
          meta.dummy_model_input = self.dummy_model_input
      return meta
  
imports: import re
  from typing import Any, Dict, Tuple, Union
  import torch
  from pytext.common.constants import Padding, VocabMeta
  from pytext.legacy import data
  from pytext.legacy.vocab import Vocab
  from pytext.utils import data, precision
  from pytorch.text.fb.utils.config_utils import EmbedInitStrategy
label_desc: Use image node_id 3 for calling the Field obj's underlying member method code with example usage: obj.get_meta() and returns: meta