code: def _check_attributes(self, g, attributes):
      msg = "Graphistry instance after featurization should have `{}` as attribute"
      for attribute in attributes:
          self.assertTrue(hasattr(g, attribute), msg.format(attribute))
          if "features" in attribute:
              self.assertIsInstance(
                  getattr(g, attribute),
                  pd.DataFrame,
                  msg.format(attribute),
              )
          if "target" in attribute:
              self.assertIsInstance(
                  getattr(g, attribute),
                  pd.DataFrame,
                  msg.format(attribute),
              )
          if "encoder" in attribute:
              self.assertIsInstance(
                  getattr(g, attribute),
                  FastEncoder,
                  msg.format(attribute),
              )
  
imports: import datetime
  import graphistry
  import logging
  import numpy
  import pandas
  from typing import Any
  import pytest
  import unittest
  import warnings
  from graphistry.feature_utils import process_dirty_dataframes, process_nodes_dataframes, resolve_feature_engine, lazy_import_has_min_dependancy, lazy_import_has_dependancy_text, FastEncoder
  from graphistry.features import topic_model, ngrams_model
  from graphistry.constants import SCALERS
label_desc: Use image node_id 1 for calling the TestFeatureMethods obj's underlying member method code with example usage: obj._check_attributes(g, attributes) without return types