import { Subject, Observable } from "rxjs";
export declare type EmitterType = string;
export declare namespace EmitterMetadata {
    type ProxyMode = keyof {
        None;
        From;
        Alias;
        Merge;
    };
    namespace ProxyMode {
        const None: ProxyMode;
        const From: ProxyMode;
        const Alias: ProxyMode;
        const Merge: ProxyMode;
    }
    interface SubjectInfo extends SubjectInfo.CoreDetails {
        propertyKey: string;
        observable: Subject<any> | Observable<any>;
    }
    namespace SubjectInfo {
        interface CoreDetails {
            initialValue?: any;
            readOnly?: boolean;
            proxyMode?: ProxyMode;
            proxyPath?: string;
            proxyMergeUpdates?: boolean;
        }
        interface WithDynamicAlias extends SubjectInfo {
            observable: Observable<any>;
        }
        interface WithStaticAlias extends SubjectInfo {
            observable: Subject<any>;
        }
        function IsDynamicAlias(subjectInfo: SubjectInfo): subjectInfo is SubjectInfo.WithDynamicAlias;
        function IsStaticAlias(subjectInfo: SubjectInfo): subjectInfo is SubjectInfo.WithStaticAlias;
    }
    type MetadataMap = Map<EmitterType, SubjectInfo>;
    const EmitterMapSymbol: 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;
    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;
}