import { Diff, Disposable, Middleware } from '../core';
/**
 * Describes a map of the given type.
 * https://fnx.js.org/docs/api/mapOf.html
 * @param kind The type of items this map contains
 */
export declare function mapOf<T>(kind: T): {
    applySnapshot?(snapshot: string): boolean;
    applySnapshot?(snapshot: object, options?: {
        asJSON: true;
    }): boolean;
    getSnapshot?(): object;
    getSnapshot?(options: {
        asString: true;
    }): string;
    getSnapshot?(options: {
        asJSON: true;
    }): object;
    applyDiffs?(diffs: Diff[]): boolean;
    use?(middleware: Middleware): Disposable;
} & {
    [key: string]: T;
};