code: def setUp(self):
      size = 10
      self.y_values = np.random.rand(size)
      self.t_values = np.arange(size, dtype=float)
      self.time_function = TimeFunction([self.t_values, self.y_values])
      self.hawkes_kernel_time_func = HawkesKernelTimeFunc(
          self.time_function
      )
  
file_path: tick/tick/hawkes/simulation/tests/hawkes_kernel_time_func_test.py
imports: import unittest
  import numpy
  from tick.base import TimeFunction
  from tick.hawkes import HawkesKernelTimeFunc
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