code: def run_const(message, fn, im, c):
      run_cmp(message, im, 50, 50, lambda x: run_fn2(fn, x, c))
      run_cmp(message, im, 50, 50, lambda x: run_fn2(fn, c, x))
      run_cmp(message, im, 10, 10, lambda x: run_fn2(fn, x, c))
      run_cmp(message, im, 10, 10, lambda x: run_fn2(fn, c, x))
  
file_path: pyvips/tests/helpers/helpers.py
imports: import os
  import sys
  import tempfile
  import pytest
  import pyvips
label_desc: Use image node_id 12 for calling a global function with example usage: run_const(message, fn, im, c) without return types