code: def test_plot_points_spd2(self):
      one_point = self.spd.random_point()
      visualization.plot(one_point, space="SPD2")
  
      points = self.spd.random_point(4)
      visualization.plot(points, space="SPD2")
  
imports: import matplotlib
  import matplotlib.pyplot
  import geomstats.backend
  import geomstats.visualization
  from geomstats.geometry.hyperbolic import Hyperbolic
  from geomstats.geometry.hypersphere import Hypersphere
  from geomstats.geometry.matrices import Matrices
  from geomstats.geometry.poincare_half_space import PoincareHalfSpace
  from geomstats.geometry.pre_shape import PreShapeSpace
  from geomstats.geometry.spd_matrices import SPDMatrices
  from geomstats.geometry.special_euclidean import SpecialEuclidean
  from geomstats.geometry.special_orthogonal import SpecialOrthogonal, _SpecialOrthogonalMatrices
  from geomstats.test.test_case import TestCase
label_desc: Use image node_id 24 for calling the TestVisualization obj's underlying member method code with example usage: obj.test_plot_points_spd2() without return types