import type { GraphPointer } from 'clownface';
import type { Kopflos, KopflosResponse, ResultEnvelope } from './Kopflos.js';
import type { HandlerArgs } from './handler.js';
import type { KopflosEnvironment } from './env/index.js';
export interface DecoratorCallback {
    (): Promise<ResultEnvelope>;
}
export interface RequestDecorator {
    applicable?: (args: HandlerArgs) => boolean | Promise<boolean>;
    run(args: HandlerArgs, next: DecoratorCallback): Promise<KopflosResponse> | KopflosResponse;
}
export interface RequestDecoratorConstructor {
    new (instance: Kopflos): RequestDecorator;
}
interface DecoratorLookupArgs {
    api: GraphPointer;
    env: KopflosEnvironment;
}
export interface DecoratorLookup {
    (arg: DecoratorLookupArgs): Promise<RequestDecoratorConstructor[]>;
}
export declare const loadDecorators: ({ api, env }: DecoratorLookupArgs) => Promise<RequestDecoratorConstructor[]>;
export {};