code: def make_series(size=10, freq="D"):
      index = _make_date_time_index(size, freq)
      return pd.Series(data=np.random.rand(size), index=index)
  
imports: from datetime import datetime
  import numpy
  import pandas
  import pyarrow
  from pytest import fixture
  from random import random, randint, choice
  from faker import Faker
label_desc: Use image node_id 7 for calling the Util obj's underlying member method code with example usage: obj.make_series(size, freq) and returns: pd