code: def test_exp(self, n_points, atol):
      base_point = self.data_generator.random_point(n_points)
      tangent_vec = self.data_generator.random_tangent_vec(base_point)
  
      res = self.space.metric.exp(tangent_vec, base_point)
      res_ = self.exp_solver.exp(self.space, tangent_vec, base_point)
      self.assertAllClose(res, res_, atol=atol)
  
imports: import pytest
  import geomstats.backend
  from geomstats.test.random import RandomDataGenerator, get_random_times
  from geomstats.test.test_case import TestCase
label_desc: Use image node_id 1 for calling the ExpSolverComparisonTestCase obj's underlying member method code with example usage: obj.test_exp(n_points, atol) without return types