import type { SttProvider } from "../types.js";
export declare function normalizeSttProviderId(id: string): string;
export declare function buildSttProviderRegistry(overrides?: Record<string, SttProvider>, pluginProviders?: SttProvider[]): Map<string, SttProvider>;
export declare function getSttProvider(id: string, registry: Map<string, SttProvider>): SttProvider | undefined;