code: def _executable_exists(name):
      return (
          subprocess.call(
              [CHECK_CMD, name],
              stdout=subprocess.PIPE,
              stderr=subprocess.PIPE,
          )
          == 0
      )
  
imports: import platform
  import os
  import subprocess
  from .clipboards import init_osx_clipboard, init_gtk_clipboard, init_qt_clipboard, init_xclip_clipboard, init_xsel_clipboard, init_klipper_clipboard, init_no_clipboard
  from .windows import init_windows_clipboard
label_desc: Use image node_id 1 for calling a global function with example usage: _executable_exists(name) and returns: unknown