/** Report an error to stderr and exit with error */
export declare function Bye(message: string, ...optionalParams: any[]): never;
/** Report an non-fatal issue */
export declare function Warn(message: string, ...optionalParams: any[]): void;
/** Collect warnings and output with call counts with OutputWarnCounts() */
export declare function CountWarn(message: string): void;
/** Output collected warnings (CountWarn) with call counts */
export declare function OutputWarnCounts(): void;