code: def iwyu_formatter(output):
      """Process iwyu's output, basically a no-op."""
      print("\n".join(output))
  
file_path: arrow/cpp/build-support/iwyu/iwyu_tool.py
imports: import os
  import sys
  import json
  import argparse
  import subprocess
  import re
  import logging
label_desc: Use image node_id 1 for calling a global function with example usage: iwyu_formatter(output) without return types