code: def estimate_coincide_test_data(self):
      return self.generate_random_data()
  
imports: import random
  import geomstats.backend
  from geomstats.test.data import TestData
  from ._base import BaseEstimatorTestData, MeanEstimatorMixinsTestData
label_desc: Use image node_id 1 for calling the FrechetMeanSOCoincideTestData obj's underlying member method code with example usage: obj.estimate_coincide_test_data() and returns: self