code: def __init__(self, *args, dtype="float64", **kwargs):
      unittest.TestCase.__init__(self, *args, **kwargs)
      self.dtype = dtype
  
imports: import os
  import unittest
  import uuid
  import gc
  from scipy import sparse
  import numpy
  from tick.array.serialize import serialize_array, load_array
label_desc: Use image node_id 1 to create a new Test object from inherited base classes: object with example: obj = Test()