/** Move item at index up by one (toward start). */
export declare function moveUp(ids: string[], index: number): string[];
/** Move item at index down by one (toward end). */
export declare function moveDown(ids: string[], index: number): string[];
/** Insert dragged id before drop target id in ordered list. */
export declare function moveDrag(ids: string[], draggedId: string, targetId: string): string[];