/**
 * OpenAI API Client
 *
 * Low-level fetch wrapper for the talker processing pipeline.
 * Uses fetch directly (no SDK) to keep dependencies minimal.
 */
import type { TalkerDependencies } from "../../types";
/**
 * Call OpenAI chat completions API.
 *
 * A raw fetch, not the injected `OpenAI` SDK client, so this stays reachable
 * without the `openai` peer being installed (see peer-deps.test.ts). Honours
 * `processing.baseUrl` so a host routing through Azure OpenAI or a gateway
 * isn't silently bypassed, aborts after `processing.requestTimeoutMs` so a
 * hung upstream request can't hold a /call, /sms or /whatsapp webhook open
 * indefinitely, and samples at `processing.temperature` - callers already
 * fall back to the original text on any rejection here.
 */
export declare function callOpenAI(deps: TalkerDependencies, systemPrompt: string, userMessage: string, context: {
    phoneNumber: string;
    stage: "incoming" | "outgoing";
}): Promise<string>;