/**
 * Messaging Processor
 *
 * End-to-end processing pipeline for a single SMS or WhatsApp interaction.
 * SMS and WhatsApp share the same Twilio payload shape and TwiML response
 * format; only the phrase namespace and the flow's channel-specific content
 * field differ.
 */
import type { FlowRegistry } from "../../flows/registry";
import type { MessagingChannel, TalkerDependencies } from "../../types";
export type { MessagingChannel };
/**
 * Process an SMS or WhatsApp interaction and generate TwiML response
 */
export declare function processMessage(deps: TalkerDependencies, registry: FlowRegistry, phoneNumber: string, messageBody: string, to: string, channel: MessagingChannel): Promise<string>;