code: def fit(self, X, y):
      import sklearn.feature_selection
  
      self.preprocessor = sklearn.feature_selection.SelectPercentile(
          score_func=self.score_func, percentile=self.percentile
      )
  
      self.preprocessor.fit(X, y)
      return self
  
label_desc: Use image node_id 1 for calling the SelectPercentileBase obj's underlying member method code with example usage: obj.fit(X, y) and returns: self