export declare class MetiganError extends Error {
    constructor(message: string);
}
export declare class ApiError extends MetiganError {
    statusCode: number;
    message: string;
    error?: string;
    constructor(statusCode: number, message: string, error?: string);
}
export declare class ValidationError extends MetiganError {
    message: string;
    field?: string;
    constructor(message: string, field?: string);
}