import { DocumentClient } from 'aws-sdk/lib/dynamodb/document_client';
import { Omit } from 'ramda';
import { DocumentOptions } from '../model/option';
interface EngineParams {
    ddbClient: DocumentClient;
    table: string;
    options: DocumentOptions;
    hashKey: string;
    index?: string;
    rangeKey?: string;
}
export declare class Engine {
    private readonly ddbClient;
    protected readonly table: string;
    protected readonly hash: string;
    protected readonly range?: string;
    protected readonly index?: string;
    readonly options: DocumentOptions;
    constructor(params: EngineParams);
    batchGet(hashKey: TScalar, rangeKey?: TScalar, params?: any): Promise<DocumentClient.BatchGetItemOutput | null>;
    batchWrite(params: DocumentClient.BatchWriteItemInput): Promise<DocumentClient.BatchWriteItemOutput | null>;
    /**
     * @todo
     */
    delete(keys: any): Promise<DocumentClient.DeleteItemOutput | null>;
    /**
     * @todo throw Error, if (this.rangeKeyName && !rangeKey)
     */
    get(hashKey: TScalar, rangeKey?: TScalar): Promise<DocumentClient.GetItemOutput | null>;
    /**
     * @param input
     * @returns {Promise<PromiseResult<DocumentClient.PutItemOutput, AWSError>>}
     */
    put(input: Omit<DocumentClient.PutItemInput, 'TableName'>): Promise<DocumentClient.PutItemOutput | null>;
    query(params: any): Promise<DocumentClient.QueryOutput | null>;
    scan(params?: any): Promise<DocumentClient.ScanOutput | null>;
    update(hashKey: TScalar, rangeKey: TScalar | undefined, input?: DocumentClient.UpdateItemInput): Promise<DocumentClient.UpdateItemOutput | null>;
    /**
     * @priority low
     * @todo memoize?
     */
    private getTableParam;
    /**
     * @todo clean up
     * @param hashKey
     * @param rangeKey
     * @returns {{Key: {}}}
     */
    private getKeyParam;
    private createGetParam;
    private handleError;
}
export declare type TScalar = string | number | DocumentClient.binaryType;
export {};