import { EOU } from '../../agents/providers.js';
import type { TurnDetectorModel } from './models.js';
/** Options for {@link TurnDetector}. Unknown keys are ignored (forward-compat). */
export type TurnDetectorOptions = {
    /** Which detector to use: `'echo-large'` (the default) or `'echo-small'`. See {@link TurnDetectorModel}. */
    model?: TurnDetectorModel | string | null;
    /** End-of-turn probability cutoff in [0, 1]. Default `0.7`. */
    threshold?: number;
    /** Inference service address. Falls back to the `ZRT_INFERENCE_GATEWAY` env var, then the default endpoint. */
    host?: string | null;
    /** Inference service auth token. Default `''`. */
    authToken?: string | null;
    /** Inference service base URL. Default `null`. */
    baseUrl?: string | null;
    [key: string]: any;
};
declare class TurnDetectorImpl extends EOU {
    static readonly displayName = "TurnDetector";
    _providerName: string;
    /** Which detector is in use: `'echo-large'` or `'echo-small'`. */
    model: TurnDetectorModel;
    _modelId: TurnDetectorModel;
    _host: string;
    _authToken: string;
    _inferenceBaseUrl: string | null;
    constructor(opts?: TurnDetectorOptions);
    getRuntimeConfig(): Record<string, any>;
}
export type TurnDetector = TurnDetectorImpl;
/**
 * End-of-turn detector; decides when the caller has finished speaking.
 *
 * Selected by `model`: `'echo-large'` (the default) or `'echo-small'`.
 *
 * @throws If `model` is not one of the supported names.
 */
export declare const TurnDetector: (opts?: TurnDetectorOptions) => TurnDetector;
export {};