export declare enum LogLevel {
    DEBUG = 0,
    INFO = 1,
    WARNING = 2,
    ERROR = 3
}
export interface LogEntry {
    timestamp: string;
    level: LogLevel;
    message: string;
    context?: Record<string, any> | undefined;
    error?: Error | undefined;
}
export declare class Logger {
    private static instance;
    private logLevel;
    private logs;
    private constructor();
    static getInstance(): Logger;
    setLevel(level: LogLevel): void;
    debug(message: string, context?: Record<string, any>): void;
    info(message: string, context?: Record<string, any>): void;
    warning(message: string, context?: Record<string, any>): void;
    error(message: string, error?: Error, context?: Record<string, any>): void;
    private log;
    getLogs(): LogEntry[];
    clearLogs(): void;
    logApiCall(method: string, url: string, params?: any): void;
    logApiResponse(method: string, url: string, status: number, responseTime: number): void;
    logTransaction(txType: string, txInfo: any): void;
    logNonce(apiKeyIndex: number, nonce: number): void;
    logSignerError(operation: string, error: Error): void;
}
export declare const logger: Logger;
//# sourceMappingURL=logger.d.ts.map