import type { constructor } from './utils';
export declare const setMetadata: <T>(key: string | symbol, value: T) => ClassDecorator;
export declare function getMetadata<T>(target: object, key: string | symbol): T | undefined;
export declare const setParameterMetadata: (key: string | symbol, value: unknown) => ParameterDecorator;
export declare const getParameterMetadata: (key: string | symbol, target: constructor<unknown>) => unknown[];
export declare const setMethodMetadata: (key: string, value: unknown) => MethodDecorator;
export declare const getMethodMetadata: (key: string, target: object, propertyKey: string) => unknown;