Code manager set code

Hi @artf. Is there something similar to this editor.CodeManager.setCode(component, 'css', {cssc: editor.CssComposer}

to update the css rule of the selected block returned from editor.CodeManager.getCode(component, 'css', {cssc: editor.CssComposer});

For example: This is the returned css rule collection from using
editor.CodeManager.getCode(component, 'css', {cssc: editor.CssComposer});

Returned:

.c1234 {
  color: 'white';
}

.classx .c1234{
 background: black;
}

What I need is to save and update it to like

.c1234 {
   color: 'yellow';
}

.classx .c1234{
 background: #222222;
}

---

I tried the cc.setClassRule('c1234', { background: #222222 }); but this csscomposer function is limited for 1 class only I need a dynamic function that can update the content returned by editor.CodeManager.getCode(component, 'css', {cssc: editor.CssComposer});

Thank you !