export declare class Logger {
    static enable: boolean;
    static enableLong: boolean;
    _prefix: string;
    get _enabled(): boolean;
    get _enableLong(): boolean;
    constructor(prefix: string);
    get long(): boolean;
    group: (...args: Array<any>) => void;
    groupCollapsed: (...args: Array<any>) => void;
    groupEnd: () => void;
    log: (...args: Array<any>) => void;
    warn: (...args: Array<any>) => void;
    error: (...args: Array<any>) => void;
    table: (...args: Array<any>) => void;
}
export declare function concatUint8Array(arr: Array<Uint8Array>): Uint8Array;