import { OrgChartUser, OrgChartNode } from './types';
/**
 * Build a hierarchical tree structure from flat user list
 */
export declare function buildOrgTree(users: OrgChartUser[]): OrgChartNode[];
/**
 * Get initials from name for avatar fallback
 */
export declare function getInitials(name: string): string;
/**
 * Get color class based on job role level
 */
export declare function getRoleBadgeColor(jobRole?: string): string;