/**
 * Collapse a comma-separated locality chain in `parsed.city` down to its last
 * element and record the earlier ones as dropped.
 *
 * @param parsed  the in-progress parse result, mutated in place
 * @param labels  number-label words the grammar consumes but never emits
 *                ("Plot", "House"); always reported as dropped
 */
export declare function keepLastLocality(parsed: Record<string, any>, labels?: readonly string[]): void;