// =============================================================================
// Copyright (c) 2026 Haixing Hu.
//
// SPDX-License-Identifier: Apache-2.0
//
// Licensed under the Apache License, Version 2.0.
// =============================================================================
//! Measurement kind used while collecting a value encoder Display projection.
/// Selects the JSON measurement used for text emitted by a `Display` value.
///
/// The collector uses this distinction to apply string depth limits to values
/// while measuring map keys without treating them as nested JSON strings.
pub