code: def get_files_list():
      response = requests.request("GET", f"{HTTP_API_ROOT}/files/")
      assert response.status_code == 200
      response_data = response.json()
      assert isinstance(response_data, list)
      return response_data
  
imports: from pathlib import Path
  import json
  import requests
  import pandas
  import pytest
  from mindsdb.api.executor.data_types.response_type import RESPONSE_TYPE
  from .conftest import make_test_csv
  from .http_test_helpers import HTTPHelperMixin
label_desc: Use image node_id 1 for calling the TestHTTP obj's underlying member method code with example usage: obj.get_files_list() and returns: response_data