Method var_arg

mypy/types.py:1978–1983

The formal argument for *args.

(self)

    # TODO: here is a lot of code duplication with Callable type, fix this.
    def var_arg(self) -> FormalArgument | None:
        """The formal argument for *args."""
        for position, (type, kind) in enumerate(zip(self.arg_types, self.arg_kinds)):
            if kind == ARG_STAR:
                return FormalArgument(None, position, type, False)
        return None

    def kw_arg(self) -> FormalArgument | None:
        """The formal argument for **kwargs."""