fix: linting

Author: f-allian

causal_testing/surrogate/causal_surrogate_assisted.py

@@ -3,12 +3,11 @@
 from abc import ABC, abstractmethod
 from dataclasses import dataclass
 from typing import Callable
-
+import pandas as pd
 from causal_testing.data_collection.data_collector import ObservationalDataCollector
 from causal_testing.specification.causal_specification import CausalSpecification
 from causal_testing.testing.base_test_case import BaseTestCase
 from causal_testing.testing.estimators import CubicSplineRegressionEstimator
-import pandas as pd
 
 @dataclass
 class SimulationResult: