code: def setup_method(self):
      if not hasattr(self, "data_generator"):
          self.data_generator = EmbeddedSpaceRandomDataGenerator(
              self.space
          )
      super().setup_method()
  
imports: import pytest
  import geomstats.backend
  from geomstats.test.random import EmbeddedSpaceRandomDataGenerator, MatrixVectorSpaceRandomDataGenerator, VectorSpaceRandomDataGenerator
  from geomstats.test.vectorization import generate_vectorization_data
  from geomstats.test_cases.geometry.complex_manifold import ComplexManifoldTestCase
  from geomstats.test_cases.geometry.manifold import ManifoldTestCase
  from geomstats.test_cases.geometry.mixins import ProjectionTestCaseMixins
  from geomstats.vectorization import get_batch_shape
label_desc: Use image node_id 1 for calling the _OpenSetTestCaseMixins obj's underlying member method code with example usage: obj.setup_method() without return types