code: def setUp(self):
      self.dim = 2
      np.random.seed(320982)
  
imports: import os
  import pickle
  import unittest
  import numpy
  from tick.base.inference import InferenceTest
  from tick.hawkes import HawkesCumulantMatching, HawkesCumulantMatchingTf, HawkesCumulantMatchingPyT
  from tick.hawkes.inference.hawkes_cumulant_matching import HawkesTheoreticalCumulant
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