code: def fit(self, X, y=None, **kwargs):
      self.scores_ = self.scores
      return self
  
imports: from collections import defaultdict, namedtuple
  from test.unit.input_convertors import _map_into_single_column, ensure_dataframe, ensure_list_1d, ensure_ndarray, ensure_ndarray_2d, ensure_series
  import numpy
  import pandas
  import pytest
  from sklearn.base import BaseEstimator, ClassifierMixin
  from fairlearn.postprocessing._constants import LABEL_KEY, SCORE_KEY, SENSITIVE_FEATURE_KEY
  from fairlearn.postprocessing._threshold_operation import ThresholdOperation
label_desc: Use image node_id 2 for calling the ExamplePredictor obj's underlying member method code with example usage: obj.fit(X, y) and returns: self