import { StdlibRegistry } from "./Instance";
import { SqrlKey } from "../object/SqrlKey";
import SqrlEntity from "../object/SqrlEntity";
import { Context } from "../api/ctx";
export declare function buildKey(ctx: Context, counterEntity: SqrlEntity, ...featureValues: Array<any>): Promise<SqrlKey | null>;
export declare function registerKeyFunctions(instance: StdlibRegistry): void;