Are "hide-" tags supposed to be honored?

[tobydriscoll]

I can't see where the cell tags honored by myst are documented. However, the remove-input, remove-output, and remove-cell tags seem to work as I expect. But the hide-input, hide-output, and hide-cell tags are ignored in my simple tests. Is the functionality gone or renamed, or am I doing something wrong?

E.g.,

## remove output
```{code-cell}
:tags: remove-output
print("Hello, world!")
```

## remove input
```{code-cell}
:tags: remove-input
print("Hello, world!")
```

## hide input
```{code-cell}
:tags: hide-input
print("Hello, world!")
```

## hide output
```{code-cell}
:tags: hide-output
print("Hello, world!")
```

## hide cell
```{code-cell}
:tags: hide-cell
print("Hello, world!")
```

[agoose77]

In mystmd these are currently not implemented but are on our Jupyter book beta todo list!

[choldgraf]

Here's the issue tracking hide support via tags in jupyter book 2 / myst:

• Control code cell visibility and behavior with tags and metadata  #1108