import { AtomicReference } from "../../support/AtomicReference";
import * as Sy from "./_internal";
export declare abstract class SyncLayer<R, E, A> {
   readonly hash: AtomicReference<string | number | symbol>;
   readonly _R: (_: R) => void;
   readonly _E: () => E;
   readonly _A: () => A;
   setKey(key: PropertyKey): this;
   abstract scope(): Sy.IO<(_: SyncMemoMap) => Sy.Sync<R, E, A>>;
   build(): Sy.Sync<R, E, A>;
}
export declare type SyncMemoMap = Map<PropertyKey, any>;
export declare enum SyncLayerInstructionTag {
   FromSync = "FromSync",
   Fresh = "Fresh",
   Suspend = "Suspend",
   Both = "Both",
   Using = "Using",
   From = "From",
   All = "All"
}
//# sourceMappingURL=model.d.ts.map