import 'reflect-metadata';
export declare function hasMetadata(metadataKey: string, target: any, propertyKey?: string | symbol): boolean;
export declare function setMetadata<V>(metadataKey: string, metadataValue: V, target: any, propertyKey?: string | symbol): void;
export declare function clearMetadata<V>(metadataKey: string, target: any, propertyKey?: string | symbol): void;
export declare function getMetadata<V>(metadataKey: string, target: any, propertyKey?: string | symbol): V | null;
export declare function getOwnMetadata<V>(metadataKey: string, target: any, propertyKey?: string | symbol): V | null;
export declare function getMetadataKeys(target: any, propertyKey?: string | symbol): string[];
export declare function addToMetadata<V>(metadataKey: string, metadataValue: V, target: any, propertyKey?: string | symbol): void;
export declare function mergeWithMetadata<V extends object>(metadataKey: string, metadataValue: V, target: any, propertyKey?: string | symbol): void;
export declare function removeFromMetadata<V>(metadataKey: string, metadataValue: V, target: any, propertyKey?: string | symbol, isEqual?: (a: V, b: V) => boolean): void;
export declare function setMetadataMap<V = any, K = string>(key: K, value: V, metadataKey: string, target: any, propertyKey?: string): void;
export declare function setMetadataMapSet<V = any, K = string>(key: K, value: V, metadataKey: string, target: any, propertyKey?: string): void;
export declare function setMetadataMapMap<V = any, K = string, K2 = string>(key: K, key2: K2, value: V, metadataKey: string, target: any, propertyKey?: string): void;