/**
 * @callback FlowtraceCallback
 * @param {Error | null} err
 * @param {import("./Flowtrace").FlowtraceJson} [flowtrace]
 * @returns {void}
 */
/**
 * @param {string} filepath
 * @param {FlowtraceCallback} callback
 * @returns {void}
 */
export function loadFile(filepath: string, callback: FlowtraceCallback): void;
/**
 * @param {string} url
 * @param {FlowtraceCallback} callback
 * @returns {void}
 */
export function loadHttp(url: string, callback: FlowtraceCallback): void;
export type FlowtraceCallback = (err: Error | null, flowtrace?: import("./Flowtrace").FlowtraceJson) => void;