/// <reference types="node" resolution-mode="require"/>
/// <reference types="node" resolution-mode="require"/>
import Koa from 'koa';
import stream from 'stream';
import { AllBodyMimeTypes, AllResponseMimeTypes, AllResponsesMatchingMimeType, AsyncOrSync, BodiesMatchingMimeType, OperationTypes, WithMimeTypeGlobs } from 'yasdk-runtime';
export type KoaDecodersFor<O extends OperationTypes, S = {}> = {
    readonly [G in WithMimeTypeGlobs<AllBodyMimeTypes<O>>]?: KoaDecoder<BodiesMatchingMimeType<O, G>, S>;
};
export type KoaDecoder<B, S = {}> = (ctx: Koa.ParameterizedContext<S>) => AsyncOrSync<B>;
export type KoaEncodersFor<O extends OperationTypes, S = {}> = {
    readonly [G in WithMimeTypeGlobs<AllResponseMimeTypes<O>>]?: KoaEncoder<AllResponsesMatchingMimeType<O, G>, S>;
};
export type KoaEncoder<D, S = {}> = (data: D | (D extends string ? Buffer | stream.Readable : never), ctx: Koa.ParameterizedContext<S>) => AsyncOrSync<void>;
export declare const jsonDecoder: KoaDecoder<any>;
export declare const jsonEncoder: KoaEncoder<any>;
export declare const textDecoder: KoaDecoder<any>;
export declare const textEncoder: KoaEncoder<any>;