pub fn get(service: &str, account: &str) -> Result<Option<String>, String>Expand description
The secret stored for account, or None when there is none.
A missing entry is Ok(None); an unreachable or locked store is Err.
The distinction matters: collapsing a locked keychain into None would
surface to the user as “no API key configured” and send them to re-run
lev setup instead of unlocking their keychain.