code: def unary_op_with_dtype_given_shape_test_data(self):
      axis_kwargs = {"axis": 0}
      smoke_data = [
          dict(func_name="cumprod", array_shape=2),
          dict(func_name="cumsum", array_shape=2),
          dict(func_name="mean", array_shape=2),
          dict(
              func_name="mean", array_shape=(2, 2), kwargs=axis_kwargs
          ),
          dict(func_name="sum", array_shape=2),
          dict(func_name="sum", array_shape=(2, 2), kwargs=axis_kwargs),
          dict(func_name="std", array_shape=2),
          dict(func_name="std", array_shape=(2, 2), kwargs=axis_kwargs),
      ]
  
      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 7 for calling the DtypeTestData obj's underlying member method code with example usage: obj.unary_op_with_dtype_given_shape_test_data() and returns: self