/**
 * Speech Response Handler
 *
 * Handles POST /call/respond — called by Twilio when speech is detected.
 * Supports both synchronous and async acknowledgment patterns.
 */
import type { Context } from "hono";
import type { FlowRegistry } from "../../flows/registry";
import type { TalkerDependencies } from "../../types";
export declare function handleRespond(c: Context, deps: TalkerDependencies, registry: FlowRegistry): Promise<Response>;