code: def pidx():
      num_elements = int(1e3)
      a = np.random.randint(0, num_elements // 10, num_elements)
      b = np.random.randint(0, num_elements // 10, num_elements)
      return pd.MultiIndex.from_arrays([a, b], names=("a", "b"))
  
file_path: cudf/python/cudf/benchmarks/API/bench_multiindex.py
imports: import numpy
  import pandas
  import pytest
  from config import cudf
label_desc: Use image node_id 1 for calling a global function with example usage: pidx() and returns: pd