I think it's batch_callback, not send_message_batch.

[hituzi-no-sippo]

The reason is that it writes "a Callback<IN> is returned". https://github.com/yewstack/docs/blob/2bdbafcd7edb07c241d64ca13bab4aa042a7eb85/src/concepts/components/callbacks.md#L23-L27 send_message_batch does not return Callback<IN> , but batch_callback return Callback<IN>.

If it's correct, I create a pull request.

[jstarry]

@hituzi-no-sippo yes, good catch. It should be batch_callback 👍