docs: @Override
      public String[] getAsyncAppenderImplementationNames() {
          return CONFIGURATION
                  .getStringProperty(
                          BLITZ4J_ASYNC_APPENDERS,
                          this.getPropertyValue(BLITZ4J_ASYNC_APPENDERS,
                                  "com.netflix.blitz4j.AsyncAppender")).get()
                  .split(",");
      }