// =============================================================================
// Copyright (c) 2025 - 2026 Haixing Hu.
//
// SPDX-License-Identifier: Apache-2.0
//
// Licensed under the Apache License, Version 2.0.
// =============================================================================
//! Defines the closing-fence requirement for Markdown fence normalization.
/// Specifies whether an opening Markdown code fence needs a closing fence.
///
/// # Examples
///
/// ```compile_fail
/// #![deny(unused_must_use)]
/// use qubit_json::MarkdownFenceClosing;
///
/// fn closing_policy() -> MarkdownFenceClosing {
/// MarkdownFenceClosing::Optional
/// }
///
/// closing_policy();
/// ```