import { StructureNode } from './Option.context';
/**
 * Find the index of the last visible node in an options dropdown structure.
 *
 * Used to determine which group should suppress its trailing divider (the one
 * that ends up as the last visible thing in the dropdown).
 *
 * - For an option node: visible when not filtered out.
 * - For a group node: visible when at least one of its options is not filtered.
 *
 * Pass `filteredOptionsById` when the consumer supports filtering (Autocomplete).
 * Omit it for non-filtering consumers (Select); options are then treated as
 * always visible and groups are treated as visible when non-empty.
 */
export declare function getLastVisibleStructureIndex(structureIds: StructureNode[], optionIdsByGroup: Map<string, string[]>, filteredOptionsById?: Record<string, boolean>): number;