The caller's transcription of one piece. request.prompt is the context to hand the provider, when there is any;
request.attempt is 1 for a piece's first try; request.signal is the job's own. A call that throws is made again
while the piece has tries left and the job's signal has not aborted.
The caller's transcription of one piece.
request.promptis the context to hand the provider, when there is any;request.attemptis 1 for a piece's first try;request.signalis the job's own. A call that throws is made again while the piece has tries left and the job's signal has not aborted.