import { type Server } from "http";
import { type WebsocketPluginOptions } from "@fastify/websocket";
import { type FastifyReply } from "fastify";
import { type ExtendedApi } from "./decorators";
export declare function resolveIntegratedViteHmrOptions({ httpServer, requiresDedicatedWebSocketServer, rawPort, }: {
    httpServer: Server;
    requiresDedicatedWebSocketServer: boolean;
    rawPort?: string | undefined;
}): {
    server: Server;
} | {
    port: number;
};
export declare function resolveWebSocketPluginOptions({ rawPluginOption, apis, }: {
    rawPluginOption: boolean | WebsocketPluginOptions | undefined;
    apis: ExtendedApi[];
}): WebsocketPluginOptions | undefined;
export declare function resolveWebSocketCloseDescriptor(error: unknown): {
    code: number;
    reason: string;
    logLevel: "warn" | "error";
};
export declare function createWebSocketReplyStub(): FastifyReply;
//# sourceMappingURL=websocket-helpers.d.ts.map