code: def test_unary_op_like_scipy(self, func_name, a):
      return self._test_func_like_scipy(func_name, [a])
  
imports: import random
  import numpy
  import pytest
  import scipy
  import geomstats.backend
  from geomstats.test.test_case import TestCase
  from geomstats.test.vectorization import generate_vectorization_data
label_desc: Use image node_id 2 for calling the AgainstScipyTestCase obj's underlying member method code with example usage: obj.test_unary_op_like_scipy(func_name, a) and returns: self