code: def test__formatter_int():
      assert _formatter(3) == 3
  
file_path: imagededup/tests/test_plotter.py
imports: import os
  import pytest
  import matplotlib.pyplot
  from pathlib import Path
  import numpy
  from imagededup.utils.plotter import _formatter, _validate_args, plot_duplicates
label_desc: Use image node_id 2 for calling a global function with example usage: test__formatter_int() without return types