code: def _metadata(
      vocab_size: int,
      max_num_tokens: int,
  ) -> ml_collections.ConfigDict:
      return ml_collections.ConfigDict(
          {
              "vocab_size": vocab_size,
              "target_shape": (-1, max_num_tokens),
          }
      )
  
file_path: scenic/scenic/projects/lang4video/configs/base.py
imports: from collections.abc import Sequence
  from typing import Literal
  from typing import Union
  import ml_collections
label_desc: Use image node_id 4 for calling a global function with example usage: _metadata(vocab_size, max_num_tokens) and returns: ml_collections