import { Db } from "@lodestar/db";
import { Root, Slot } from "@lodestar/types";
export declare function getRootIndex(db: Db, stateRoot: Root): Promise<Uint8Array | null>;
export declare function storeRootIndex(db: Db, slot: Slot, stateRoot: Root): Promise<void>;
export declare function getRootIndexKey(root: Root): Uint8Array;
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