docstr: Unit test house_prices
docstr_tok: ["Unit","test","house_prices"]
code: def test_load_house(self):
      """
      Unit test house_prices
      """
      house_df, house_dict = data_loading("house_prices")
      assert isinstance(house_df, pd.DataFrame)
      assert isinstance(house_dict, dict)
  
file_path: shapash/tests/unit_tests/data/test_data_loader.py
imports: import unittest
  from shapash.data.data_loader import data_loading
  import pandas
label_desc: Use image node_id 1 for calling the Test_load_data obj's underlying member method code with example usage: obj.test_load_house() without return types