//! The crypto provider `jsonwebtoken` signs and verifies with, chosen by the
//! `jwt-aws-lc-rs` and `jwt-rust-crypto` features.
/// Makes the provider of the enabled `jwt-*` feature the process default of
/// `jsonwebtoken`, unless the application installed one already; with both features,
/// aws-lc-rs. Call it before every `jsonwebtoken` signature or verification.
///
/// Without either feature it does nothing, so the provider the application installed,
/// through its own `jsonwebtoken` features or `install_default`, is the one used.
pub