code: def func_out_dtype_test_data(self):
      smoke_data = [
          # TODO: add additional test for int
          dict(
              func_name="where",
              args=([True, False], 20.0, 20.0),
              kwargs={},
              expected=gs.float64,
          ),
      ]
  
      return self.generate_tests(smoke_data)
  
imports: import numpy
  import geomstats.backend
  from geomstats.geometry.matrices import Matrices
  from geomstats.geometry.spd_matrices import SPDMatrices
  from geomstats.geometry.symmetric_matrices import SymmetricMatrices
  from geomstats.test.data import TestData
label_desc: Use image node_id 17 for calling the DtypeTestData obj's underlying member method code with example usage: obj.func_out_dtype_test_data() and returns: self