//! Runtime (docs/SPEC.md ยง2.6): [`OxideSession`] for embedded and cluster
//! execution, and the thin wrappers that run Apache DataFusion Ballista's
//! scheduler and executors with OxideLake's placement rule, plan codec and
//! function registry installed (see [`cluster`]).
//!
//! Dependency direction: depends on every other OxideLake library crate and on
//! the `ballista*` crates.
pub use udf;
pub use ;