code: def test_size_compat(self, frame_or_series):
      # GH8846
      # size property should be defined
  
      o = construct(frame_or_series, shape=10)
      assert o.size == np.prod(o.shape)
      assert o.size == 10 ** len(o.axes)
  
imports: from copy import copy, deepcopy
  import numpy
  import pytest
  from pandas.core.dtypes.common import is_scalar
  from pandas import DataFrame, Index, Series, date_range
  import pandas._testing
label_desc: Use image node_id 6 for calling the TestGeneric obj's underlying member method code with example usage: obj.test_size_compat(frame_or_series) without return types