Is it possible to store NodeRef inside a Context?

In order to avoid using web_sys library’s document().get_element_by_id() (as it is usually better practice storing refs instead of directly manipulating DOM in frameworks), I wanted to store a NodeRef inside a Context, but that doesn’t seem to be possible due to this error:
this method takes 1 argument but 0 arguments were supplied when trying this:

<input type="text"
    node_ref=my_ctx2.input_ref
/>

Please check this codebox link in order to check what’s happening.

I can confirm the same error applies to leptos v0.6.11.

Is that a bug or am I missing anything really fundamental?