code: def test_is_tangent(self, vector, base_point, expected, atol):
      res = _is_tangent_intrinsic(
          self.space, vector, base_point, atol=atol
      )
      self.assertAllEqual(res, expected)
  
imports: import random
  import pytest
  import scipy
  import geomstats.backend
  from geomstats.learning.frechet_mean import FrechetMean
  from geomstats.test.random import EmbeddedSpaceRandomDataGenerator, HypersphereIntrinsicRandomDataGenerator
  from geomstats.test.test_case import TestCase
  from geomstats.test.vectorization import generate_vectorization_data
  from geomstats.test_cases.geometry.base import LevelSetTestCase
  from geomstats.test_cases.geometry.manifold import ManifoldTestCase
  from geomstats.vectorization import get_batch_shape
label_desc: Use image node_id 4 for calling the HypersphereIntrinsicTestCase obj's underlying member method code with example usage: obj.test_is_tangent(vector, base_point, expected, atol) without return types