code: def test_quantile_to_interval_level_and_back(quantile_level: float):
      interval_level, side = quantile_to_interval_level(quantile_level)
      output = interval_to_quantile_level(interval_level, side)
      assert output == quantile_level
  
label_desc: Use image node_id 1 for calling a global function with example usage: test_quantile_to_interval_level_and_back(quantile_level) without return types