code: def test_dataframe_type_dask(dask_es):
      assert dask_es.dataframe_type == Library.DASK
  
file_path: featuretools/featuretools/tests/entityset_tests/test_dask_es.py
imports: import pandas
  import pytest
  from woodwork.logical_types import Categorical, Datetime, Double, Integer, NaturalLanguage
  from featuretools.entityset import EntitySet
  from featuretools.tests.testing_utils import get_df_tags
  from featuretools.utils.gen_utils import Library, import_or_none
label_desc: Use image node_id 6 for calling a global function with example usage: test_dataframe_type_dask(dask_es) without return types