export type ERROR_CATEGORY = "GENERAL" | "AUTHORIZATION" | "ROUTES";
export type ERROR_LEVEL = "FATAL" | "ERROR" | "WARN" | "INFO" | "DEBUG" | "TRACE";
export declare const ERROR_LEVELS: Readonly<{
    FATAL: 0;
    ERROR: 1;
    WARN: 2;
    INFO: 3;
    DEBUG: 4;
    TRACE: 5;
}>;
export interface CustomError extends Error {
    category: ERROR_CATEGORY;
    level: ERROR_LEVEL;
    error: string;
    data?: unknown;
    callback?(): void;
}
export declare function isCustomError(object: unknown): object is CustomError;
export declare function ErrorHandler(e: Error | CustomError): void;