code: def wrap_attr_test_data(self):
      def example_fnc():
          return 2.0
  
      data = [dict(func=example_fnc, scale=3)]
  
      return self.generate_tests(data)
  
file_path: geomstats/tests/tests_geomstats/test_geometry/data/scalar_product_metric.py
imports: import geomstats.backend
  from geomstats.test.data import TestData
label_desc: Use image node_id 1 for calling the WrapperTestData obj's underlying member method code with example usage: obj.wrap_attr_test_data() and returns: self, int