import { CurrentApiService, IDept } from 'dbweb-core';
export declare enum RoleType {
    always = "always",
    select = "select"
}
export interface UserRole {
    Name: string;
    Type: RoleType;
}
export interface ColumnsWithLetter {
    Letter: string;
    Columns: string[];
}
export declare class UserBack {
    private api;
    constructor(api: CurrentApiService);
    fetchFilterDept(val: string): import("rxjs").Observable<IDept[]>;
    fetchRoles(): import("rxjs").Observable<UserRole[]>;
}