code: def data_2d_single_group():
      return pd.read_csv(DATA_DIR / "hsgp_2d_single_group.csv")
  
imports: import pathlib
  import re
  import bambi
  import numpy
  import pandas
  import pytest
label_desc: Use image node_id 3 for calling a global function with example usage: data_2d_single_group() and returns: pd