import { Context, Next } from 'koa';
export interface IMiddleware {
    execute(ctx: Context, next: Next): Promise<any>;
    toRawMiddleware(): (ctx: Context, next: Next) => Promise<any>;
}
export declare abstract class Middleware implements IMiddleware {
    abstract execute(ctx: Context, next: Next): Promise<any>;
    toRawMiddleware(): (ctx: Context, next: Next) => Promise<any>;
    static fromRawMiddleware(rawMiddleware: (ctx: Context, next: Next) => any): {
        execute(ctx: Context, next: Next): Promise<any>;
        toRawMiddleware(): (ctx: Context, next: Next) => Promise<any>;
    };
}