code: def test_random_tangent_vec_is_complex(self, n_points):
      point = self.data_generator.random_point(n_points)
      tangent_vec = self.data_generator.random_tangent_vec(point)
  
      self.assertTrue(gs.is_complex(tangent_vec))
  
file_path: geomstats/geomstats/test_cases/geometry/complex_manifold.py
imports: import pytest
  import geomstats.backend
  from geomstats.test.test_case import TestCase
  from geomstats.test_cases.geometry.manifold import _ManifoldTestCaseMixins
label_desc: Use image node_id 3 for calling the ComplexManifoldTestCase obj's underlying member method code with example usage: obj.test_random_tangent_vec_is_complex(n_points) without return types