code: def _get_example_metadata(metadata_df_row):
      """Returns example metadata."""
      nsfw_tag = metadata_df_row["NSFW"]
      if nsfw_tag not in _NSFW_TAGS:
          nsfw_tag = _NSFW_MISSING_TAG
  
      return {
          "caption": metadata_df_row["caption"],
          "nsfw": nsfw_tag,
          "similarity": metadata_df_row["similarity"]
          or _MISSING_SIMILARITY_VALUE,
          "license": metadata_df_row["LICENSE"] or "",
          "url": metadata_df_row["url"],
          "original_width": metadata_df_row["original_width"],
          "original_height": metadata_df_row["original_height"],
      }
  
file_path: datasets/tensorflow_datasets/vision_language/laion400m/laion400m.py
imports: import functools
  from typing import Dict, Tuple
  from etils import epath
  import numpy
  from tensorflow_datasets.core.utils.lazy_imports_utils import tensorflow
  import tensorflow_datasets.public_api
label_desc: Use image node_id 1 for calling a global function with example usage: _get_example_metadata(metadata_df_row) and returns: dict