// =============================================================================
// Copyright (c) 2025 - 2026 Haixing Hu.
//
// SPDX-License-Identifier: Apache-2.0
//
// Licensed under the Apache License, Version 2.0.
// =============================================================================
//! Borrowed runtime source retained for V1 payload preparation.
use crateMultiValues;
use crateValue;
/// Borrowed scalar-or-collection source used to build a V1 wire shape on
/// demand.
///
/// # Type Parameters
///
/// * `'a` - Lifetime of the borrowed runtime value or collection.
pub