code: def test_init_with_default_select_by(self):
      model_selection = ModelSelection(default_select_by="val_loss")
      self.assertEqual(["val_loss"], model_selection.default_select_by)
  
imports: import unittest
  from small_text.training.metrics import Metric
  from small_text.training.model_selection import ModelSelectionResult, ModelSelection, NoopModelSelection
label_desc: Use image node_id 2 for calling the ModelSelectionTest obj's underlying member method code with example usage: obj.test_init_with_default_select_by() without return types