import { Selector } from "./Selector";
import { KeyDesc } from "./KeyDesc";
import { OpDesc } from "./OpDesc";
export declare class EqDesc extends OpDesc {
    readonly type: string;
    constructor(key: string | KeyDesc, value: Selector);
    lookup(source: any): (target: any) => boolean;
    for(source: any, keyMap?: any): any;
}
export declare function Eq(key: string | KeyDesc, value: Selector): EqDesc;