import type { DuckDBType } from '../DuckDBType';
import { DuckDBValue } from './DuckDBValue';
/**
 * Wraps a single decoded VARIANT row value. The wrapper distinguishes a
 * SQL-NULL row (returned as bare `null`) from an embedded `VARIANT_NULL`
 * tag (returned as `new DuckDBVariantValue(null)`).
 *
 * The optional `type` records the exact DuckDB type of the inner value
 * (recovered from the on-disk variant tag at decode time). The append /
 * bind paths use it so heterogeneous content round-trips faithfully —
 * `typeForValue` is a best-effort fallback when `type` is not provided.
 */
export declare class DuckDBVariantValue {
    readonly value: DuckDBValue;
    readonly type?: DuckDBType;
    constructor(value: DuckDBValue, type?: DuckDBType);
    toString(): string;
}
export declare function variantValue(value: DuckDBValue, type?: DuckDBType): DuckDBVariantValue;