import { GracefulShutdownServer } from "@medusajs/framework/utils";
/**
 * Imports the "instrumentation.js" file from the root of the
 * directory and invokes the register function. The existence
 * of this file is optional, hence we ignore "ENOENT"
 * errors.
 */
export declare function registerInstrumentation(directory: string): Promise<void>;
/**
 * Wrap request handler inside custom implementation to enabled
 * instrumentation.
 */
export declare var traceRequestHandler: (...args: any[]) => Promise<any>;
declare function start(args: {
    directory: string;
    host?: string;
    port?: number;
    types?: boolean;
    cluster?: string;
    workers?: string;
    servers?: string;
}): Promise<{
    server: GracefulShutdownServer;
    gracefulShutDown: () => void;
} | void>;
export default start;
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