export declare enum LogLevel {
    TRACE = 0,
    DEBUG = 1,
    INFO = 2,
    WARN = 3,
    ERROR = 4,
    FATAL = 5
}
export declare class Levels {
    private cache;
    private levels;
    private namespaceLevel?;
    get(ns: string): LogLevel;
    setLevelCallback(cb?: (ns: string) => LogLevel | undefined): void;
    private determineLevel;
    configure(level: LogLevel, config: string): void;
}
export declare const LEVELS: Levels;
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