code: def test_init(self):
      model_selection = NoopModelSelection()
      self.assertIsNone(model_selection.last_model_id)
  
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 1 for calling the NoopModelSelectionTest obj's underlying member method code with example usage: obj.test_init() without return types