import { VoiceProviderRegistry } from './provider-registry.js';
import { type LocalVoiceConfigReader } from './providers/local.js';
export interface BuiltinVoiceProviderOptions {
    /** voice.local.* config reader, registers the free local-engine provider when present. */
    readonly readConfig?: LocalVoiceConfigReader | undefined;
    /**
     * The managed voice-runtime root. When set, a provisioned host resolves engine
     * binaries/models from the managed install by default (config still wins), so
     * local voice works with zero further configuration.
     */
    readonly managedVoiceRoot?: string | undefined;
}
export declare function ensureBuiltinVoiceProviders(registry: VoiceProviderRegistry, options?: BuiltinVoiceProviderOptions): void;
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