import { BaseDuckDBType } from './BaseDuckDBType';
import { DuckDBTypeId } from '../DuckDBTypeId';
import { Json } from '../Json';
export declare class DuckDBGeometryType extends BaseDuckDBType<DuckDBTypeId.GEOMETRY> {
    /**
     * Coordinate Reference System (e.g. a WKT2 string) attached to the type.
     *
     * Read-only: setting `crs` on a `DuckDBGeometryType` is not propagated by
     * `toLogicalType()`. To produce a GEOMETRY logical type carrying a CRS,
     * construct it via SQL (e.g. `'POINT(1 2)'::GEOMETRY('<crs>')`).
     */
    readonly crs?: string;
    constructor(alias?: string, crs?: string);
    toString(): string;
    toJson(): Json;
    static readonly instance: DuckDBGeometryType;
    static create(alias?: string, crs?: string): DuckDBGeometryType;
}
export declare const GEOMETRY: DuckDBGeometryType;