import { SystemLog } from '../models/systemLog';
export declare class LoggerService {
    static info(message: string, options: {
        source: string;
        module?: string;
        user_id?: number;
        username?: string;
        ip_address?: string;
        details?: string;
    }): Promise<SystemLog | null>;
    static warn(message: string, options: {
        source: string;
        module?: string;
        user_id?: number;
        username?: string;
        ip_address?: string;
        details?: string;
    }): Promise<SystemLog | null>;
    static error(message: string, options: {
        source: string;
        module?: string;
        user_id?: number;
        username?: string;
        ip_address?: string;
        details?: string;
    }): Promise<SystemLog | null>;
    static debug(message: string, options: {
        source: string;
        module?: string;
        user_id?: number;
        username?: string;
        ip_address?: string;
        details?: string;
    }): Promise<SystemLog | null>;
    private static log;
}
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