Function timestamp_timeout_value 

pub const fn timestamp_timeout_value(choice: SudoTimestampChoice) -> i32

What: Map a wizard choice to the sudoers timestamp_timeout value.

Inputs:

• choice: User-selected duration.

Output:

• Minutes as a positive integer, or -1 for no expiry in the session (per sudoers(5)).

Details:

• -1 behavior depends on sudo version/policy; document in UI copy.