code: def format_proc(p):
      if p.pid not in _format_cache:
          _format_cache[p.pid] = " ".join(
              map(os.path.basename, p.cmdline())
          )
      return _format_cache[p.pid]
  
label_desc: Use image node_id 1 for calling a global function with example usage: format_proc(p) and returns: _format_cache