/**
 * For AttributeParts, sets the attribute if the value is defined and non-empty, and removes
 * the attribute if the value is undefined or empty (`''`).
 *
 * For other part types, this directive is a no-op.
 */
export declare function ifNonEmpty(value: string | undefined): string | typeof import("lit").nothing;
//# sourceMappingURL=ifNonEmpty.d.ts.map