class_docstr: DatasetBuilder for lambada dataset.
docstr: Yields examples.
docstr_tok: ["Yields","examples","."]
code: def _generate_examples(self, filepath):
      """Yields examples."""
      with epath.Path(filepath).open() as f:
          for idx, line in enumerate(f):
              key = "%s_%d" % (os.path.basename(filepath), idx)
              yield key, {"passage": line}
  
imports: import os
  from etils import epath
  import tensorflow_datasets.public_api
label_desc: Use image node_id 3 for calling the Builder obj's underlying member method code with example usage: obj._generate_examples(filepath) without return types