[pre-commit.ci] auto fixes from pre-commit.com hooks

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Author: pre-commit-ci[bot]

neural_network/radial_basis_function_neural_network.py

@@ -1,6 +1,7 @@
 import doctest
 import numpy as np
 
+
 class RadialBasisFunctionNeuralNetwork:
     """
     A simple implementation of a Radial Basis Function Neural Network (RBFNN).