code: def _generate_test_data_from_generators(
      self, data_generators, func_name
  ):
      smoke_data = []
      for data_generator in data_generators:
          smoke_data += getattr(data_generator, func_name)()
  
      return self.generate_tests(smoke_data)
  
imports: import geomstats.backend
  from geomstats.geometry.stratified.graph_space import ExhaustiveAligner, GraphSpace, _GeodesicToPointAligner
  from geomstats.learning.aac import _AACGGPCA, _AACFrechetMean, _AACRegression
  from geomstats.test.data import TestData
  from geomstats.test.test_case import np_backend
label_desc: Use image node_id 2 for calling the _EstimatorTestData obj's underlying member method code with example usage: obj._generate_test_data_from_generators(data_generators, func_name) and returns: self