code: def generate_indices(f, values=False):
      """
      generate the indices
      if values is True , use the axis values
      is False, use the range
      """
      axes = f.axes
      if values:
          axes = (list(range(len(ax))) for ax in axes)
  
      return itertools.product(*axes)
  
imports: from datetime import datetime, timedelta
  import itertools
  import numpy
  import pytest
  from pandas import DataFrame, Index, Series, Timedelta, Timestamp, date_range
  import pandas._testing
label_desc: Use image node_id 1 for calling a global function with example usage: generate_indices(f, values) and returns: itertools