import { LogLevel } from './EngineEvents/EngineEvent';
export type LogObject = {
    flowNodeId?: string;
    correlationId?: string;
    processInstanceId?: string;
    flowNodeInstanceId?: string;
} & {
    [key: string]: any;
};
export type LoggerSettings = {
    minLogLevel: LogLevel;
    engineId: string;
    hostname?: string;
};
export declare function initLogger(settings: LoggerSettings): void;
export declare function setMinLogLevel(minLogLevelToSet: LogLevel): void;
export declare function setGlobalLogObjects(logObjects: {
    [key: string]: any;
}): void;
export declare function getGlobalLogObjects(): {
    [key: string]: any;
};
export declare class Logger {
    private namespace;
    private defaultLogObject;
    constructor(namespace: string, defaultLogObject?: LogObject);
    flush(): void;
    addToDefaultLogObject(key: string, value: any): void;
    removeFromDefaultLogObject(key: string): void;
    logForLevel(message: string, level: LogLevel, logObject?: LogObject): void;
    error(message: string, logObject?: LogObject): void;
    warn(message: string, logObject?: LogObject): void;
    info(message: string, logObject?: LogObject): void;
    debug(message: string, logObject?: LogObject): void;
    trace(message: string, logObject?: LogObject): void;
    private shouldLog;
    private logLevelAsNumber;
}