# because both dicts are same type
                    copy[key] = config[key] or copy.get(key)  # type: ignore
        return copy
[docs]    def bind(self, **kwargs: Any) -> Runnable[Input, Output]:
        return self.__class__(
            bound=self.bound, config=self.config, kwargs={**self.kwargs, **kwargs}
        )
[docs]    def with_config(
        self,
        config: Optional[RunnableConfig] = None,
        # Sadly Unpack is not well supported by mypy so this will have to be untyped
        **kwargs: Any,
    ) -> Runnable[Input, Output]:
        return self.__class__(
            bound=self.bound,
            kwargs=self.kwargs,
            config={**self.config, **(config or {}), **kwargs},
        )
[docs]    def with_retry(self, **kwargs: Any) -> Runnable[Input, Output]:
        return self.__class__(
            bound=self.bound.with_retry(**kwargs),
            kwargs=self.kwargs,
            config=self.config,
        )
[docs]    def invoke(
        self,
        input: Input,
        config: Optional[RunnableConfig] = None,
        **kwargs: Optional[Any],
    ) -> Output:
        return self.bound.invoke(
            input,
            self._merge_config(config),
            **{**self.kwargs, **kwargs},
        )
[docs]    async def ainvoke(
        self,
        input: Input,
        config: Optional[RunnableConfig] = None,
        **kwargs: Optional[Any],
    ) -> Output:
        return await self.bound.ainvoke(
            input,
            self._merge_config(config),
            **{**self.kwargs, **kwargs},