Code folding for distinct code chunks?

[HABSaremyjam]

Hello,

I would like to have the option to code_folding: hide within distinct code chunks in an R Markdown file and not in others. There is some code that I want displayed without the ability to hide it, but other code that I want to give the reader an opportunity to look at if they wish. Is there a way to do this? I've searched the webs high and low and am not seeing a straightforward solution, and that may be because there isn't one. But if anyone knows of one, that would be super helpful.

Thanks so much!

[AlexisW]

Does this not do what you want? Namely:

---
title: "Untitled"
output:
  html_document
---

```{r setup, include=FALSE}
knitr::opts_chunk$set(echo = TRUE)
```

Some text

<details><summary>Click here</summary>
This is folded

```{r code}
# hidden code
print("Hello world!")
```
</details>

This is outside

```{r}
# not hidden
2^2

```

Gives: