code: def test_metric_matrix(self, base_point, atol):
      res = self.space.metric.metric_matrix(base_point)
      res_ = self.other_space.metric.metric_matrix(base_point)
      self.assertAllClose(res, res_, atol=atol)
  
imports: import math
  import pytest
  import geomstats.backend
  from geomstats.geometry.spd_matrices import SPDMatrices
  from geomstats.test_cases.geometry.connection import ConnectionComparisonTestCase, ConnectionTestCase
  from geomstats.vectorization import get_batch_shape
label_desc: Use image node_id 1 for calling the RiemannianMetricComparisonTestCase obj's underlying member method code with example usage: obj.test_metric_matrix(base_point, atol) without return types