code: def test_load_dummy_data(dummy_data):
      assert isinstance(dummy_data, pd.DataFrame)
      assert dummy_data.shape == (30200, 5)
      assert set(["TMP", "EDA", "ACC_x", "ACC_y", "ACC_z"]) == set(
          dummy_data.columns
      )
      assert isinstance(dummy_data["TMP"], pd.Series)
      assert isinstance(dummy_data["EDA"], pd.Series)
      assert isinstance(dummy_data["ACC_x"], pd.Series)
      assert isinstance(dummy_data["ACC_y"], pd.Series)
      assert isinstance(dummy_data["ACC_z"], pd.Series)
  
imports: import os
  import pandas
  from pandas.testing import assert_index_equal, assert_series_equal
  from .utils import dataframe_to_series_dict, dummy_data, logging_file_path, series_to_series_dict
label_desc: Use image node_id 1 for calling a global function with example usage: test_load_dummy_data(dummy_data) without return types