code: def test_all_nan_skipna(self, dtype):
      if dtype == "int64":
          pytest.skip("nans not supported in int64")
      primitive_instance = MaxConsecutiveZeros(skipna=True)
      primitive_func = primitive_instance.get_function()
      array = pd.Series([np.nan, np.nan, np.nan, np.nan], dtype=dtype)
      assert np.isnan(primitive_func(array))
  
imports: import numpy
  import pandas
  import pytest
  from featuretools.primitives import MaxConsecutiveFalse, MaxConsecutiveNegatives, MaxConsecutivePositives, MaxConsecutiveTrue, MaxConsecutiveZeros
label_desc: Use image node_id 7 for calling the TestMaxConsecutiveZeros obj's underlying member method code with example usage: obj.test_all_nan_skipna(dtype) without return types