class_docstr: ArrowTestBase
class_docstr_tok: ["ArrowTestBase"]
docstr: setUpClass
code: def setUpClass(cls):  # pylint: disable=invalid-name
      """setUpClass"""
      cls.scalar_data = [
          [True, False, True, True],
          [1, 2, -3, 4],
          [1, 2, -3, 4],
          [1, 2, -3, 4],
          [1, 2, -3, 4],
          [1, 2, 3, 4],
          [1, 2, 3, 4],
          [1, 2, 3, 4],
          [1, 2, 3, 4],
          [1.1, 2.2, 3.3, 4.4],
          [1.1, 2.2, 3.3, 4.4],
      ]
      cls.scalar_dtypes = (
          tf.dtypes.bool,
          tf.dtypes.int8,
          tf.dtypes.int16,
          tf.dtypes.int32,
          tf.dtypes.int64,
          tf.dtypes.uint8,
          tf.dtypes.uint16,
          tf.dtypes.uint32,
          tf.dtypes.uint64,
          tf.dtypes.float32,
          tf.dtypes.float64,
      )
      cls.scalar_shapes = tuple(
          tf.TensorShape([]) for _ in cls.scalar_dtypes
      )
  
      cls.list_fixed_data = [
          [[1, 1], [2, 2], [3, 3], [4, 4]],
          [[1, 1], [2, 2], [3, 3], [4, 4]],
          [[1.1, 1.1], [2.2, 2.2], [3.3, 3.3], [4.4, 4.4]],
          [[1.1, 1.1], [2.2, 2.2], [3.3, 3.3], [4.4, 4.4]],
      ]
      cls.list_fixed_dtypes = (
          tf.dtypes.int32,
          tf.dtypes.int64,
          tf.dtypes.float32,
          tf.dtypes.float64,
      )
      cls.list_fixed_shapes = tuple(
          tf.TensorShape([None]) for _ in cls.list_fixed_dtypes
      )
  
      cls.list_var_data = [
          [[1], [2, 2], [3, 3, 3], [4, 4, 4]],
          [[1.1], [2.2, 2.2], [3.3, 3.3, 3.3], [4.4, 4.4, 4.4]],
      ]
      cls.list_var_dtypes = (tf.dtypes.int32, tf.dtypes.float32)
      cls.list_var_shapes = (
          tf.TensorShape([None]),
          tf.TensorShape([None]),
      )
  
      cls.list_data = cls.list_fixed_data + cls.list_var_data
      cls.list_dtypes = cls.list_fixed_dtypes + cls.list_var_dtypes
      cls.list_shapes = cls.list_fixed_shapes + cls.list_var_shapes
  
imports: from collections import namedtuple
  import io
  import os
  import socket
  import tempfile
  import threading
  import pytest
  import pyarrow
  import numpy.testing
  import tensorflow
  import tensorflow_io
label_desc: Use image node_id 1 for calling the ArrowTestBase obj's underlying member method code with example usage: obj.setUpClass(cls) without return types