import type { ServerSourceConfigExtension } from '@modern-js/runtime-extensions/server-config';
export type ServerGlobalVarsOptions = ServerSourceConfigExtension['globalVars'];
/** Each global name mapped to the JSON source text that replaces it. */
export type SerializedServerGlobalVars = Record<string, string>;
/**
 * Resolves `source.globalVars` for BFF server code and serializes every value
 * to the JSON text that replaces it. Dev source loading and build output use
 * this one function, so both see the same values. A value without an exact
 * JSON form (such as `undefined`, a function or a BigInt) is rejected.
 */
export declare const serializeServerGlobalVars: (options: ServerGlobalVarsOptions) => SerializedServerGlobalVars;