Clear CKEditor after ajax form submit

I’m hoping there’s a simple answer for this I just haven’t been able to google.

I need to clear a text_long field with CKE enabled when the form is successfully submitted via ajax.

For a string/string_long, putting this in the callback this works:

return $ajax_response->addCommand(new  InvokeCommand('#fieldID', 'val', array("")));

Is there an equivalent for text/text_long?

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