code: def test_track_dataframe():
      df = pd.read_csv(
          "https://gist.githubusercontent.com/tijptjik/9408623/raw/b237fa5848349a14a14e5d4107dc7897c21951f5/wine.csv"
      )
      assert (
          wandb_track("df", df, testing=True, datasets=True)
          == "pd.DataFrame"
      )
      assert wandb_track("df", df, testing=True, datasets=False) is None
  
file_path: wandb/tests/pytest_tests/unit_tests/test_metaflow.py
imports: import platform
  from pathlib import Path
  import pytest
  import pandas
  from metaflow import FlowSpec, step
  from sklearn.ensemble import GradientBoostingClassifier, RandomForestClassifier
  from wandb.integration.metaflow import wandb_log, wandb_track, wandb_use
label_desc: Use image node_id 4 for calling a global function with example usage: test_track_dataframe() without return types