code: def _replace_posargs(s, env):
      "posargs:DEFAULT"
      e = re.split(r'\s*\:\s*', s)
      if e and e[0] == "posargs":
          from ctox.main import positional_args
          return (" ".join(positional_args(env.options)) or
                  (e[1] if len(e) > 1 else ""))
      else:
          raise ValueError(f _replace_posargs(s, env):
      "posargs:DEFAULT"
      e = re.split(r'\s*\:\s*', s)
      if e and e[0] == "posargs":
          from ctox.main import positional_args
          return (" ".join(positional_args(env.options)) or
                  (e[1] if len(e) > 1 else ""))
      else:
          raise ValueError()
docs: posargs:DEFAULT