code: def wide_list_of_series(rng):
      return [
          pd.Series(rng.normal(size=20), np.arange(20), name="a"),
          pd.Series(rng.normal(size=10), np.arange(5, 15), name="b"),
      ]
  
imports: import numpy
  import pandas
  import pytest
label_desc: Use image node_id 10 for calling a global function with example usage: wide_list_of_series(rng) and returns: list