//! MLS cryptographic operations for DE-MLS.
//!
//! - `service` — the `MlsService` trait, the protocol's only contract with an
//! MLS engine (byte-in / byte-out; signs internally via a passed `&impl
//! Signer`).
//! - `types` — the byte boundary types (`KeyPackageBytes`, `MlsCommitInput`, …).
//! - `error` — `MlsError`.
//! - `engine` — the reference `OpenMlsService`. It owns no OpenMLS provider:
//! crypto + rand + storage arrive by reference per call, so one provider can
//! back every conversation. It takes the credential + ciphersuite from the
//! creator's key package, and the signer per call — so it pins no provider,
//! credential, or suite. The integrator (the gateway) supplies the provider,
//! credentials, and key-package generation.
pub use OpenMlsService;
pub use MlsError;
pub use ;
pub use ;