code: def inner_product_test_data(self):
      data = [
          dict(
              tangent_vec_a=gs.array([[-3.0, 1.0], [-1.0, -2.0]]),
              tangent_vec_b=gs.array([[-9.0, 0.0], [4.0, 2.0]]),
              base_point=None,
              expected=gs.array(19.0),
          ),
          dict(
              tangent_vec_a=gs.array(
                  [
                      [[-1.5, 0.0], [2.0, -3.0]],
                      [[0.5, 7.0], [0.5, -2.0]],
                  ]
              ),
              tangent_vec_b=gs.array(
                  [
                      [[2.0, 0.0], [2.0, -3.0]],
                      [[-1.0, 0.0], [1.0, -2.0]],
                  ]
              ),
              base_point=None,
              expected=gs.array([10.0, 4.0]),
          ),
      ]
      return self.generate_tests(data)
  
imports: import math
  import geomstats.backend
  from geomstats.test.data import TestData
  from .base import MatrixVectorSpaceTestData
  from .riemannian_metric import RiemannianMetricTestData
label_desc: Use image node_id 1 for calling the MatricesMetric22TestData obj's underlying member method code with example usage: obj.inner_product_test_data() and returns: self