diff --git a/examples/4_advising_models/advise_by_surrogate.py b/examples/4_advising_models/advise_by_surrogate.py
index a60e355d..f0083bde 100644
--- a/examples/4_advising_models/advise_by_surrogate.py
+++ b/examples/4_advising_models/advise_by_surrogate.py
@@ -1,7 +1,4 @@
-"""Example on advising pipelines for a dataset.
-
-Run this module from the repo root.
-"""
+""" Example on advising pipelines for a dataset. """
 
 import pickle
 
@@ -22,22 +19,25 @@
 SURROGATE_MODEL_HYPERPARAMETERS_FILE = get_checkpoints_dir() / "tabular" / "hparams.yaml"
 META_FEATURES_EXTRACTOR_CONFIG_FILE = get_configs_dir() / "use_features.json"
 META_FEATURES_PREPROCESSOR_FILE = (
-    get_data_dir() / "pymfe_meta_features_and_fedot_pipelines/all/meta_features_preprocessors.pickle"
+        get_data_dir() / "pymfe_meta_features_and_fedot_pipelines/all/meta_features_preprocessors.pickle"
 )
 PIPELINES_FILE = get_data_dir() / "pymfe_meta_features_and_fedot_pipelines/all/pipelines_fedot.pickle"
 
 
 def preprocess_dataset_features(
-    dataset: DatasetBase,
-    dataset_meta_features_extractor: MetaFeaturesExtractor,
-    dataset_meta_features_preprocessor: FeaturesPreprocessor,
+        dataset: DatasetBase,
+        dataset_meta_features_extractor: MetaFeaturesExtractor,
+        dataset_meta_features_preprocessor: FeaturesPreprocessor,
 ) -> Data:
     """Extract dataset features.
 
     Parameters
     ----------
-    dataset: DatasetBase
-        Dataset to extract features from.
+    dataset: Dataset to extract features from.
+
+    dataset_meta_features_extractor: Extractor returning dataset meta-features.
+
+    dataset_meta_features_preprocessor: Preprocessor, preparing the meta-features after extraction.
 
     Returns
     -------
@@ -60,22 +60,16 @@ def main():
     )
     # Build dataset meta features extractor.
     extractor_params = get_extractor_params(META_FEATURES_EXTRACTOR_CONFIG_FILE)
-    dataset_meta_features_extractor = PymfeExtractor(extractor_params)
+    dataset_meta_features_extractor = PymfeExtractor(**extractor_params)
     # Build dataset meta features preprocessor.
-    dataset_meta_features_preprocessor = FeaturesPreprocessor(
-        load_path=META_FEATURES_PREPROCESSOR_FILE, extractor_params=extractor_params
-    )
+    dataset_meta_features_preprocessor = FeaturesPreprocessor(load_path=META_FEATURES_PREPROCESSOR_FILE)
     # Build pipeline features extractor.
     pipeline_extractor = FEDOTPipelineFeaturesExtractor(
         include_operations_hyperparameters=False,
         operation_encoding="ordinal",
     )
     # Build adviser.
-    advisor = SurrogateGNNModelAdvisor(
-        surrogate_model,
-        dataset_meta_features_extractor,
-        dataset_meta_features_preprocessor,
-    )
+    advisor = SurrogateGNNModelAdvisor(surrogate_model)
     # Load datasets.
     datasets_names = [
         "apsfailure",
@@ -87,7 +81,9 @@ def main():
 
     # Extract features
     pipelines_features = [pipeline_extractor(pipeline.save()[0]) for pipeline in pipelines]
-    datasets_features = [preprocess_dataset_features(dataset) for dataset in datasets]
+    datasets_features = [
+        preprocess_dataset_features(dataset, dataset_meta_features_extractor, dataset_meta_features_preprocessor) for
+        dataset in datasets]
 
     # Make prediction.
     return advisor.predict(pipelines, datasets, pipelines_features, datasets_features, k=5)