Yuki Kishimoto on Nostr: Weird, in the code it return `Result<String, Self::Err>`. Weird, in the code it return `Result<String, Self::Err>`.https://github.com/rust-nostr/nostr/blob/6f87fdc7a9725f7c0ccbd4766179af031132400e/crates/nostr/src/nips/nip19.rs#L797