/**
 * @license
 * Copyright 2026 Steven Roussey <sroussey@gmail.com>
 * SPDX-License-Identifier: Apache-2.0
 */
/**
 * Read an environment value from Node `process.env` when defined, otherwise from
 * Vite/browser `import.meta.env`.
 *
 * In Vite dev, `process` is often polyfilled without `DEV`, so reading only
 * `process.env` misses `import.meta.env.DEV` and disables dev-only features
 * (e.g. console telemetry).
 *
 * Boolean `import.meta.env` flags become `"true"` or are treated as unset when false
 * so callers using simple truthiness behave as expected.
 */
export declare function readRuntimeEnv(name: string): string | undefined;
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