// SPDX-License-Identifier: CC0-1.0
//! Bitcoin key expression and deterministic derivation
//!
//! This library provides types and functionality for key expressions and deterministic key
//! derivation.
// NB: This crate is empty if `alloc` is not enabled.
// Experimental features we need.
// Coding conventions.
extern crate alloc;
extern crate std;