code: def _test_final_column_no_padding(sequences):
      """
      The final column should always have an interaction.
      """
  
      assert np.all(sequences[:, -1] > 0)
  
file_path: spotlight/tests/test_interactions.py
imports: import numpy
  import pytest
  from spotlight.cross_validation import random_train_test_split
  from spotlight.datasets import movielens
  from spotlight.interactions import Interactions
label_desc: Use image node_id 2 for calling a global function with example usage: _test_final_column_no_padding(sequences) without return types