import { Subject } from "rxjs";
export declare type EventType = string;
export declare namespace EventMetadata {
    interface SubjectInfo {
        subject: Subject<any>;
    }
    type PropertySubjectMap = Map<string, SubjectInfo>;
    type MetadataMap = Map<EventType, PropertySubjectMap>;
    const EventMapSymbol: symbol;
    /** @description Gets the metadata map object for the given target class (or its inheritted classes). */
    function GetMetadataMap(target: Object): MetadataMap;
    /** @description Gets the metadata map object for the given target class. */
    function GetOwnMetadataMap(target: Object): MetadataMap;
    /** @description
     *  Gets the property subject map for the given event type from the metadata map for the given target class (or its inheritted classes).
     */
    function GetPropertySubjectMap(type: EventType, target: Object): PropertySubjectMap;
    /** @description
     *  Gets the property subject map for the given event type from the metadata map for the given target class.
     */
    function GetOwnPropertySubjectMap(type: EventType, target: Object): PropertySubjectMap;
    function HasOwnMetadataMap(target: Object): boolean;
    function SetMetadataMap(target: Object, map: MetadataMap): void;
    /** @description Copy all metadata from the source map to the target map.
     *
     *  Note: This mutates the target map.
     **/
    function CopyMetadata(target: MetadataMap, source: MetadataMap, overwrite?: boolean): MetadataMap;
    /** @description Merge own and inheritted metadata into a single map.
     *
     *  Note: This mutates the object's metadata.
     **/
    function CopyInherittedMetadata(object: any): MetadataMap;
}