code: def setUp(self):
      np.random.seed(9372)
  
      size = 5
      self.t_arrays = [
          np.arange(size, dtype=float),
          np.cumsum(np.random.uniform(0.1, 2, size)),
      ]
  
      self.y_arrays = [
          np.arange(size, dtype=float),
          np.random.uniform(-1, 2, size),
      ]
  
      self.inter_modes = [
          TimeFunction.InterConstLeft,
          TimeFunction.InterConstRight,
          TimeFunction.InterLinear,
      ]
  
      self.samples = itertools.product(
          self.t_arrays, self.y_arrays, self.inter_modes
      )
  
file_path: tick/tick/base/tests/time_func_test.py
imports: import unittest
  import itertools
  import numpy
  from tick.base import TimeFunction
label_desc: Use image node_id 1 for calling the Test obj's underlying member method code with example usage: obj.setUp() without return types