code: def _arg_parts(part):
      if isinstance(part, tuple):
          assert len(part) == 2, part
          return part
      assert isinstance(part, str)
      return part, "--" + part.replace("_", "-")
  
imports: import logging
  import os
  import typing
  from guild import cli
  from guild import click_util
  from guild import config
label_desc: Use image node_id 17 for calling a global function with example usage: _arg_parts(part) and returns: part,  unknown, part