/** Keep a name or description only when it has visible text. Blank stays unset. */
export declare function optionalMapText(value: unknown): string | undefined;
/** Title and description to persist. Omitted when both are unset. */
export declare function optionalMapInfo(info?: {
    title?: unknown;
    description?: unknown;
} | null): {
    title?: string;
    description?: string;
} | undefined;
export declare function isValidMapInfo(mapInfo: any): boolean;