code: def fit(self, X, y):
      self.gp.fit(X, y)
  
imports: import random
  import os
  import sys
  import collections
  import itertools
  import pickle
  import scipy.sparse
  import networkx
  import numpy
  from sklearn.cluster import SpectralClustering
  from sklearn import gaussian_process
  from scipy.optimize import minimize
  from bayes_opt import BayesianOptimization
label_desc: Use image node_id 2 for calling the GaussianProcessRegressor obj's underlying member method code with example usage: obj.fit(X, y) without return types