public BMyLog4PB AddAppender(BMyAppenderBase a, string b = null)
 {
     if (!Appenders.ContainsKey(a))
     {
         Appenders.Add(a, r(b));
     }
     return(this);
 }
            public BMyLog4PB AddAppender(BMyAppenderBase Appender, string format = null)
            {
                if (!Appenders.ContainsKey(Appender))
                {
                    Appenders.Add(Appender, compileFormat(format));
                }

                return(this);
            }