code: def requires_executable(prerequisites):
      """A decorator to check if some executable files are installed.
  
      Example:
          >>> @requires_executable('ffmpeg')
          >>> func(arg1, args):
          >>>     print(1)
          1
      """
      return check_prerequisites(
          prerequisites, checker=_check_executable
      )
  
imports: import collections.abc
  import functools
  import itertools
  import subprocess
  import warnings
  from collections import abc
  from importlib import import_module
  from inspect import getfullargspec
  from itertools import repeat
label_desc: Use image node_id 16 for calling a global function with example usage: requires_executable(prerequisites) and returns: check_prerequisites