code: def __init__(self):
      self.basic_data_generators = []
      self.data_generators = []
      self._setup()
  
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 1 to create a new _EstimatorTestData object from inherited base classes: TestData with example: obj = _EstimatorTestData()