import { DocumentClient } from 'aws-sdk/clients/dynamodb';
import { Model } from './model';
import { ConditionWriteOperate, OperateOptions } from './operate';
export declare class Update<M extends Model> extends ConditionWriteOperate<M> {
    protected options: UpdateOptions<M>;
    constructor(options?: UpdateOptions<M>);
    set(key: string): {
        to: (val?: {}) => Update<M>;
        plus: (val?: number) => Update<M>;
        minus: (val?: number) => Update<M>;
        append: (val?: {}) => Update<M>;
        prepend: (val?: {}) => Update<M>;
        ifNotExists: (val?: {}) => Update<M>;
    };
    remove(...keys: string[]): this;
    add(key: string, val: number | DocumentClient.DynamoDbSet | Set<number | string | DocumentClient.binaryType>): this;
    delete(key: string, val: DocumentClient.DynamoDbSet | Set<number | string | DocumentClient.binaryType>): this;
    inspect(): {
        Update: {};
    };
    toJSON(): Partial<DocumentClient.UpdateItemInput>;
    then<TRes>(onfulfilled?: (value?: M) => TRes | PromiseLike<TRes>, onrejected?: (reason: any) => TRes | PromiseLike<TRes>): Promise<TRes>;
}
export interface UpdateOptions<M extends Model> extends Pick<OperateOptions<M>, 'Model' | 'logic' | 'leaf' | 'condExprs' | 'setExprs' | 'removeExprs' | 'addExprs' | 'deleteExprs' | 'names' | 'values'>, Partial<DocumentClient.UpdateItemInput> {
}