import type { Source } from '../source-elements/source';
import { SourceQueryElement } from './source-query-element';
import { QueryRaw } from '../query-elements/query-raw';
/**
 * An element which wraps a known source (e.g. SQL or table).
 * Can be treated in specific circumstances as a query,
 * e.g. `run: duckdb.sql('...')`, but generally is just used as
 * a source.
 */
export declare class SQSource extends SourceQueryElement {
    readonly theSource: Source;
    elementType: string;
    constructor(theSource: Source);
    isSource(): boolean;
    getSource(): Source;
    getQuery(): QueryRaw | undefined;
}