code: def left_exp_from_identity_after_left_log_from_identity_test_data(
      self,
  ):
      return self.generate_random_data()
  
imports: import geomstats.backend
  from geomstats.test.data import TestData
  from .riemannian_metric import RiemannianMetricTestData
label_desc: Use image node_id 3 for calling the InvariantMetricVectorAtIdentityTestData obj's underlying member method code with example usage: obj.left_exp_from_identity_after_left_log_from_identity_test_data() and returns: self