export declare class Output {
    log(...args: any): void;
    warn(...args: any): void;
    getErrorPrefix(fileName: string, type?: 'error' | 'warning'): string;
}
export declare class TestOutput {
    output: string[];
    constructor();
    log(...args: any): void;
    warn(...args: any): void;
    getErrorPrefix(fileName: string, type?: 'error' | 'warning'): string;
}
export interface IOutput {
    warn: (...args: any) => void;
    log: (...args: any) => void;
    getErrorPrefix: (fileName: string, type?: 'error' | 'warning') => string;
}