import duckdb from '@duckdb/node-bindings';
import { DuckDBMapType } from '../DuckDBType';
import { DuckDBMapValue } from '../values';
import { DuckDBVector } from './DuckDBVector';
import { DuckDBListVector } from './DuckDBListVector';
export declare class DuckDBMapVector extends DuckDBVector<DuckDBMapValue> {
    private readonly mapType;
    private readonly listVector;
    constructor(mapType: DuckDBMapType, listVector: DuckDBListVector);
    static fromRawVector(mapType: DuckDBMapType, vector: duckdb.Vector, itemCount: number): DuckDBMapVector;
    get type(): DuckDBMapType;
    get itemCount(): number;
    getItem(itemIndex: number): DuckDBMapValue | null;
    setItem(itemIndex: number, value: DuckDBMapValue | null): void;
    flush(): void;
    slice(offset: number, length: number): DuckDBMapVector;
}