/*******************************************************************************
*
* Copyright (c) 2025 - 2026.
* Haixing Hu, Qubit Co. Ltd.
*
* All rights reserved.
*
******************************************************************************/
/// Default maximum recursion depth when resolving `${...}` variable references
/// in strings.
///
/// # Returns
///
/// The numeric constant `64`.
pub const DEFAULT_MAX_SUBSTITUTION_DEPTH: usize = 64;