code: def test_init(self):
      bm = BaseMethod(None, verbose=True)
      self.assertTrue(bm.exclude_unknowns)
      self.assertEqual(bm.rating_threshold, 1.0)
  
file_path: cornac/tests/cornac/eval_methods/test_base_method.py
imports: import unittest
  from cornac.eval_methods import BaseMethod
  from cornac.data import FeatureModality, TextModality, ReviewModality, ImageModality, SentimentModality
  from cornac.data import Dataset, Reader
  from cornac.metrics import MAE, AUC
  from cornac.models import MF
label_desc: Use image node_id 1 for calling the TestBaseMethod obj's underlying member method code with example usage: obj.test_init() without return types