docs: public static void premain(String agentArgument, Instrumentation instrumentation) {
  
          // We cannot do sanity checks for slf4j here as the jars loaded
          // by the application are not visible here.
  
          LogTransformer.Builder builder = new LogTransformer.Builder();
          builder = builder.addEntryExit(true);
  
          if (agentArgument != null) {
              Properties args = parseArguments(agentArgument, ",");
  
              if (args.containsKey(AgentOptions.VERBOSE)) {
                  builder = builder.verbose(true);
              }
  
              if (args.containsKey(AgentOptions.TIME)) {
                  printStartStopTimes();
              }
  
              if (args.containsKey(AgentOptions.IGNORE)) {
                  String ignore = args.getProperty(AgentOptions.IGNORE);
                  builder = builder.ignore(ignore.split(":"));
              }
  
              if (args.containsKey(AgentOptions.LEVEL)) {
                  builder = builder.level(args.getProperty(AgentOptions.LEVEL));
              }
          }
  
          instrumentation.addTransformer(builder.build());
      }