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//! Key String: Optimized for map keys.
//!
//! # Background
//!
//! Considerations:
//! - Large maps
//! - Most keys live and drop without being used in any other way
//! - Most keys are relatively small (single to double digit bytes)
//! - Keys are immutable
//! - Allow zero-cost abstractions between structs and maps (e.g. no allocating
//!   when dealing with struct field names)
//!
//! Ramifications:
//! - Inline small strings rather than going to the heap.
//! - Preserve `&'static str` across strings (`KString`),
//!   references (`KStringRef`), and lifetime abstractions (`KStringCow`) to avoid
//!   allocating for struct field names.
//! - Use `Box<str>` rather than `String` to use less memory.

mod cow;
mod fixed;
mod r#ref;
mod string;

pub use cow::*;
pub use r#ref::*;
pub use string::*;