//! The universal chunk type returned by every format.
//!
//! Mirrors the `{content, content_type, metadata}` schema the Python engine
//! exposed, but as a native Rust struct. `metadata` stays a `serde_json::Value`
//! — exactly how every format already stores it internally — so nothing is lost
//! and downstream consumers can `serde` it into their own shapes.
use ;
use Value;