import { VersionVector, VersionDot, POJO } from './common';
import AugmentedObjectManager, { AugmentedType } from './manager';
import { Element } from './element';
import PackedBuffer from '../thunk/packed';
export interface IJsonPayloadType<T extends POJO> {
    writePayload(buf: PackedBuffer, x: T): void;
    readPayload(buf: PackedBuffer): T;
    readonly initialPayload: T;
}
/**
 * An element with Last-Write-Wins semantics, where the payload is serializable with JSON.
 */
export declare abstract class LWWRegisterElement<T extends POJO> extends Element {
    protected modifiedDot: VersionDot;
    protected x: T;
    constructor(mgr: AugmentedObjectManager, ser?: PackedBuffer | LWWRegisterElement<T>);
    toPackedBuffer(buf: PackedBuffer): void;
    get type(): AugmentedType<Element, unknown> & IJsonPayloadType<T>;
    valueOf(): any;
    toStateString(): string;
    get boolean(): boolean;
    get number(): number;
    get string(): string;
    get modificationVV(): VersionVector;
    set(x: unknown): boolean;
    /**
     * Sets the POJO, optionally forcing update even if the content matches, e.g. if we edited in-place.
     */
    setPojo(x: T, force?: boolean): void;
    synchronize(src: this): void;
}