import { Operation } from '../operators';
import { BaseIndex } from '../indexes';
import { GetOptions } from '../type-helpers';
/**
 *
 * Represents a database query.
 *
 */
export declare abstract class BaseQuery<T = any> {
    readonly index: BaseIndex<T>;
    constructor(index: BaseIndex<T>);
    protected abstract operation(): Operation<T>;
    /**
     *
     * @returns the query string (key expression) that can be sent to the database.
     *
     */
    query(): string;
    /**
     *
     * @returns the options to be used when executing the query.
     *
     */
    options(): GetOptions;
    /**
     *
     * Resolves the query and returns the raw result.
     *
     */
    resolve(): Promise<unknown>;
}