interface LoggerContext {
    traceId?: string;
    requestId?: string;
    operationId?: string;
    deviceId?: string;
    userId?: string;
    [key: string]: any;
}
/**
 * Validates and sanitizes a string to prevent log injection
 * @param input - String to sanitize
 * @returns Sanitized string
 */
export declare function sanitizeForLogging(input: string): string;
/**
 * Validates logger context data
 * @param context - Context data to validate
 * @returns Validated context data
 */
export declare function validateLoggerContext(context: Partial<LoggerContext>): LoggerContext;
/**
 * Validates service name
 * @param service - Service name to validate
 * @returns Validated service name
 */
export declare function validateServiceName(service: string): string;
/**
 * Validates log level
 * @param level - Log level to validate
 * @returns Validated log level
 */
export declare function validateLogLevel(level: string): string;
export {};