code: def _join_param_hints(
      param_hint: t.Optional[t.Union[t.Sequence[str], str]]
  ) -> t.Optional[str]:
      if param_hint is not None and not isinstance(param_hint, str):
          return " / ".join(repr(x) for x in param_hint)
  
      return param_hint
  
imports: import typing
  from gettext import gettext
  from gettext import ngettext
  from ._compat import get_text_stderr
  from .utils import echo
  from .utils import format_filename
label_desc: Use image node_id 1 for calling a global function with example usage: _join_param_hints(param_hint) and returns: param_hint, str