interface ConfigOptions {
    tenantId: string;
    apiBaseUrl: string;
    cacheDuration?: number;
    emptyText?: string;
}
interface User {
    display_name: string;
    bk_username: string;
}
interface UserResponse {
    data?: User;
    [key: string]: any;
}
interface UsersResponse {
    data: User[];
}
interface UserCacheItem {
    data: UserResponse;
    timestamp: number;
}
declare class BkUserDisplayName extends HTMLElement {
    static userCache: Map<string, UserCacheItem>;
    static cacheDuration: number;
    static pendingRequests: Map<string, Promise<UserResponse>>;
    static apiBaseUrl: string;
    static tenantId: string;
    static emptyText: string;
    static observedAttributes: string[];
    static configure(config: ConfigOptions): void;
    constructor();
    fetchUser(id: string): Promise<UserResponse>;
    fetchUsers(ids: string[]): Promise<UsersResponse>;
    attributeChangedCallback(name: string, oldValue: string | null, newValue: string | null): void;
    updateDisplay(): Promise<void>;
    getDisplayName(): Promise<string>;
}
export default BkUserDisplayName;