extensions/markdown-language-features/server/src/logging.ts/LogFunctionLogger/log
class LogFunctionLogger:	public log(level: LogLevel, title: string, message: string, data?: any): void {
		this.appendLine(`[${level} ${LogFunctionLogger.now()}] ${title}: ${message}`);
		if (data) {
			this.appendLine(LogFunctionLogger.data2String(data));
		}
	}