import { BaseDuckDBType } from './BaseDuckDBType';
import type { DuckDBType } from './DuckDBType';
import { DuckDBLogicalType } from '../DuckDBLogicalType';
import { DuckDBTypeId } from '../DuckDBTypeId';
import { Json } from '../Json';
export declare class DuckDBMapType extends BaseDuckDBType<DuckDBTypeId.MAP> {
    readonly keyType: DuckDBType;
    readonly valueType: DuckDBType;
    constructor(keyType: DuckDBType, valueType: DuckDBType, alias?: string);
    toString(): string;
    toLogicalType(): DuckDBLogicalType;
    toJson(): Json;
}
export declare function MAP(keyType: DuckDBType, valueType: DuckDBType, alias?: string): DuckDBMapType;