import { DynamoDB } from 'aws-sdk';
import { DocumentClient } from 'aws-sdk/clients/dynamodb';
import { Model } from './model';
import { MultiReadOperate, OperateOptions } from './operate';
export declare class Query<M extends Model, R extends M | M[]> extends MultiReadOperate<M> implements AsyncIterable<M> {
    protected options: QueryOptions<M>;
    constructor(options?: QueryOptions<M>);
    where<T extends this>(key: string): {
        eq: (val?: {}) => T;
        lt: (val?: {}) => T;
        lte: (val?: {}) => T;
        gt: (val?: {}) => T;
        gte: (val?: {}) => T;
        between: (val?: [string, string]) => T;
        begins: (val?: string) => T;
    };
    one(): Query<M, M>;
    sort(order?: boolean | 1 | -1 | 'asc' | 'desc'): this;
    inspect(): {
        Query: {};
    };
    toJSON(): DynamoDB.DocumentClient.QueryInput;
    count(): Promise<number>;
    then<TRes>(onfulfilled?: (value?: R) => TRes | PromiseLike<TRes>, onrejected?: (reason: any) => TRes | PromiseLike<TRes>): Promise<TRes>;
    [Symbol.asyncIterator]: (this: Query<M, R>) => AsyncIterableIterator<M>;
}
export interface QueryOptions<M extends Model> extends Pick<OperateOptions<M>, 'Model' | 'logic' | 'leaf' | 'keyExprs' | 'filterExprs' | 'projExprs' | 'names' | 'values'>, Partial<DocumentClient.QueryInput> {
    one?: boolean;
}