import type { STTConfig } from './types.js';
/**
 * Lightweight availability check for channel routing. Do not import the STT
 * factory/provider registry here; channel plugins call this at startup and the
 * provider registry pulls optional SDKs (e.g. openai) into Electron's dynamic
 * extension runtime path.
 */
export declare function isSTTAvailable(config?: STTConfig): boolean;