Generate Ecmascript from AST

[GlenDC]

Using https://swc.rs/docs/usage/core#transform I can transform typescript into ecmascript AST as far as I can tell. Is it possible to then also extract part of the AST (e.g. a single function) and transform it into actual ecmascript? The AST would originally come from an AST generated by SWC, so it should be compatible. However I cannot seem to find the function which would allow me to turn it into actual JS that I can evaluate on runtime.

[GlenDC]

#4241 is related, but seems no answer has been given to that, so I suppose I might be out of luck.

The difference between my and that question is that I'm just asking it for regular vanilla JS (transpiled from TS), rather than JSX.