output_full should roundtrip with history_prompt

[netshade]

The output_full argument of generate_audio seems to indicate that the returned dictionary of contexts ( including semantic_prompt) should be able to be used in future calls to generate_audio. However, it seems that methods that receive a history_prompt argument assume that the argument will always be a string referring to a file path where the returned value has been saved.

It seems that any method that receives a history_prompt should also check to see if the argument is an ndarray, as a common case for passing along context here would be breaking up an input text into multiple segments, in which case it would be desirable to include the prior context that was just generated to bias the next segment's output. ( Please note I don't have a very deep understanding of the use of history_prompt, so if I misunderstand its usage, I would love to be corrected )

[gkucsko]

yea, you have to first save it as save_as_prompt and then pass the filepath of the npz to the generate function. admittedly probably not the best choice of api contracts 😆 will put on the list to simplify at some point

[netshade]

Are you open to a PR for this?

[gkucsko]

sure ya! closing for inactivity since it's not really an issue per se