import { LogLevel } from "../types/types";
declare global {
    interface Window {
        cardScanDebugLog: string[];
    }
}
export declare class GlobalLogger {
    static startingLogLevel: LogLevel;
    static LogLevel: LogLevel;
    static setLogLevel(level: LogLevel): void;
    static shouldLog(level: LogLevel): boolean;
    static getLog(): string[];
    static earlyLog(message: string): void;
    static log(message: string, level?: LogLevel): void;
    static debug(message: string, level?: LogLevel): void;
    static error(message: string): void;
}