import { ContentRecord, ContentRef, ContentsRecord } from "@nteract/types";
import { Map, RecordOf } from "immutable";
import { Action } from "redux";
export declare const byRef: (state: Map<ContentRef, ContentRecord>, action: Action) => Map<ContentRef, ContentRecord>;
export declare const contents: (state: RecordOf<import("@nteract/types").ContentsRecordProps> | undefined, action: Action) => ContentsRecord;