code: def _to_lines(rows):
      return [row["text"] for row in rows]
  
file_path: ray/python/ray/data/tests/test_text.py
imports: import os
  import pandas
  import pytest
  import ray
  from ray.data.datasource import BaseFileMetadataProvider, FastFileMetadataProvider, Partitioning, PartitionStyle, PathPartitionFilter
  from ray.data.tests.conftest import *
  from ray.data.tests.mock_http_server import *
  from ray.data.tests.test_partitioning import PathPartitionEncoder
  from ray.data.tests.util import Counter
  from ray.tests.conftest import *
label_desc: Use image node_id 1 for calling a global function with example usage: _to_lines(rows) and returns: unknown