How to correctly send extra uci command stop using this library

[JohanSjoblom]

After having called play() and the engine is thinking about a move, what library function can I use to send "stop" uci command to the engine.
I use the async version.
I want to force the engine to make a move. Using sendline works, but that's not a nice solution.

I need this help for the porting of Picochess to this library. See https://github.com/JohanSjoblom/picochess
The user can force the engine to make a move in the previous library version by calling stop() function.

I tried to find a stop() function here, but did not fin any.

All help is appreciated 😀

best regards,Johan