import type { HttpMiddleware } from "@egomobile/http-server";
import type { Nilable } from "../types/internal.js";
import type { IBodyParserMiddlewareOptions } from "./index.js";
/**
 * Options for 'yaml()' function.
 */
export interface IYamlOptions extends IBodyParserMiddlewareOptions {
}
/**
 * Creates a new middleware, which reads input data as UTF-8
 * string and tries to parse it as YAML to JSON object and writes this
 * object to `body` property of the current request context.
 *
 * @param {Nilable<IYamlOptions>} [options] Custom options.
 *
 * @returns {HttpMiddleware<any, any>} The new middleware.
 */
export declare function yaml(options?: Nilable<IYamlOptions>): HttpMiddleware<any, any>;