code: def numbers():
      """pytest fixture"""
      return pd.DataFrame([np.random.randn(20)], columns=range(20))
  
imports: import datetime
  import re
  from itertools import product
  import numpy
  import pandas
  import pytest
  from pandas.api.types import is_numeric_dtype
  from pandas.testing import assert_frame_equal
  from janitor.functions.utils import DropLabel, get_columns, patterns
label_desc: Use image node_id 12 for calling a global function with example usage: numbers() and returns: pd