/**
 * Builds the code to initialize the `debug` package.
 *
 * The code running in the Edge Client entry point has access to `process.env`
 * if it's defined, but the code in the runtime bundle doesn't. Furthermore, in
 * some environments `DEBUG` may be defined as a global variable rather than
 * available in `process.env`. The entry point fetches the value of `DEBUG` and
 * passes into the `debug` package.
 *
 * @param edge Whether the edge runtime is used
 */
export declare function buildDebugInitialization(edge: boolean): "" | "if (typeof globalThis !== 'undefined' && globalThis['DEBUG'] || (typeof process !== 'undefined' && process.env && process.env.DEBUG) || undefined) {\n  runtime.Debug.enable(typeof globalThis !== 'undefined' && globalThis['DEBUG'] || (typeof process !== 'undefined' && process.env && process.env.DEBUG) || undefined)\n}\n";