code: def test_dataframe_pandas():
      n_samples = 1000
      start = datetime.today()
      return pd.DataFrame(
          {
              "date": [
                  start + timedelta(days=delta)
                  for delta in range(n_samples)
              ],
              "f1": [1] * n_samples,
              "f2": [0] * n_samples,
          }
      )
  
file_path: popmon/tests/popmon/pipeline/test_split_dataset.py
imports: from datetime import datetime, timedelta
  import pandas
  import pytest
  from popmon.pipeline.dataset_splitter import split_dataset
label_desc: Use image node_id 1 for calling a global function with example usage: test_dataframe_pandas() and returns: pd