import { DuckDBType } from '../../@duckdb/data-types';
import { DuckDBValue } from '../../@duckdb/data-values';
import { DuckDBData } from './DuckDBData.js';
export declare class MemoryDuckDBData extends DuckDBData {
    private columns;
    private values;
    constructor(columns: {
        name: string;
        type: DuckDBType;
    }[], values: DuckDBValue[][]);
    get columnCount(): number;
    get rowCount(): number;
    columnName(columnIndex: number): string;
    columnType(columnIndex: number): DuckDBType;
    value(columnIndex: number, rowIndex: number): DuckDBValue;
}