code: def test_get_node_intervals(self, histogram_indexer):
      assert histogram_indexer.get_node_intervals() == [(0, 5), (5, 10)]
  
file_path: FATE/python/fate/test/histogram/indexer.py
imports: import pytest
  from fate_utils.histogram import HistogramIndexer, Shuffler
label_desc: Use image node_id 4 for calling the TestHistogramIndexer obj's underlying member method code with example usage: obj.test_get_node_intervals(histogram_indexer) without return types