/**
 * omp auth-gateway HTTP server.
 *
 * Accepts any provider-format request (OpenAI chat-completions, Anthropic
 * messages, OpenAI Responses) and dispatches through pi-ai's `streamSimple()`
 * — which handles credential injection, anthropic-beta headers, codex
 * websocket transport, and all the per-provider intricacies. The gateway is
 * pure protocol translation: foreign wire → omp Context → pi-ai stream() →
 * omp events → foreign wire.
 *
 * Endpoints:
 *   GET  /healthz                          → unauth; ok + version
 *   GET  /v1/usage                         → aggregated provider usage (5-min per-credential cache via AuthStorage)
 *   GET  /v1/credentials/check             → per-credential auth probe (diagnose 401s in a multi-account pool)
 *   GET  /v1/models                        → list known models from the registry
 *   POST /v1/chat/completions              → OpenAI chat-completions in/out
 *   POST /v1/messages                      → Anthropic messages in/out
 *   POST /v1/responses                     → OpenAI Responses in/out
 */
import type { AuthStorage } from "../auth-storage";
import type { Api, Model } from "../types";
import type { AuthGatewayServerHandle, AuthGatewayServerOptions } from "./types";
export type ModelResolver = (modelId: string) => Model<Api> | undefined;
export interface AuthGatewayBootOptions extends AuthGatewayServerOptions {
    /** Source of credentials. Caller wires this to a broker-backed AuthStorage. */
    storage: AuthStorage;
    /**
     * Resolve a client-requested model id to a pi-ai Model. Caller supplies
     * this from a ModelRegistry (lives in `coding-agent` to avoid an inverse
     * dependency in `pi-ai`).
     */
    resolveModel: ModelResolver;
    /** Optional supplier for `/v1/models` listing. Returns the full model array. */
    listModels?: () => Iterable<Model<Api>>;
}
export declare function startAuthGateway(opts: AuthGatewayBootOptions): AuthGatewayServerHandle;