import duckdb from '@duckdb/node-bindings';
import { DuckDBType } from '../DuckDBType';
import { DuckDBValue } from '../values';
export declare abstract class DuckDBVector<TValue extends DuckDBValue = DuckDBValue> {
    static standardSize(): number;
    static create(vector: duckdb.Vector, itemCount: number, knownType?: DuckDBType): DuckDBVector;
    abstract get type(): DuckDBType;
    abstract get itemCount(): number;
    abstract getItem(itemIndex: number): TValue | null;
    abstract setItem(itemIndex: number, value: TValue | null): void;
    abstract flush(): void;
    abstract slice(offset: number, length: number): DuckDBVector<TValue>;
    toArray(): (TValue | null)[];
}