try try

[asukaminato0721]

fsrs-rs-python/src/lib.rs

Lines 24 to 34 in 798fcba

	NextStates(
	self.0
	.lock()
	.unwrap()
	.next_states(
	current_memory_state.map(|x| x.0),
	desired_retention,
	days_elapsed,
	)
	.unwrap(),
	)

use try block to rewrite them as

try {
   x?
   y?
}.unwrap()

Can use nightly.

[google-labs-jules]

Jules is on it. When finished, you will see another comment and be able to review a PR.