code: def test_simple_read(scalar_dataset, reader_factory):
      """Just a bunch of read and compares of all values to the expected values using the different reader pools"""
      with reader_factory(scalar_dataset.url) as reader:
          _check_simple_reader(reader, scalar_dataset.data)
  
imports: import glob
  import itertools
  import numpy
  import pandas
  import pytest
  from pyarrow import parquet
  from petastorm import make_batch_reader, make_reader
  from petastorm.arrow_reader_worker import ArrowReaderWorker
  from petastorm.tests.test_common import create_test_scalar_dataset
  from petastorm.transform import TransformSpec
  from petastorm.unischema import UnischemaField
label_desc: Use image node_id 3 for calling a global function with example usage: test_simple_read(scalar_dataset, reader_factory) without return types