code: def test_squeeze_bins(self, histogram_indexer):
      # Test if the squeeze bins method returns a new HistogramIndexer with correct parameters
      new_indexer = histogram_indexer.squeeze_bins()
  
      assert new_indexer.node_size == histogram_indexer.node_size
      assert (
          new_indexer.feature_bin_sizes
          == [1] * histogram_indexer.feature_size
      )
  
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 11 for calling the TestHistogramIndexer obj's underlying member method code with example usage: obj.test_squeeze_bins(histogram_indexer) without return types