//! Internal helpers shared across high-level API modules.
//!
//! Not part of the public API. All submodules are `pub(crate)`.
//!
//! # Submodules
//!
//! - [`resolve`]: Column-name resolution and validation helpers.
//! - [`reassemble`]: DataFrame reassembly from raw `Table` + names.
//! - `testing_hooks`: Test-only DataFrame reassembly, compiled with `test`
//! or the `test-hooks` feature.
pub
pub
pub