@Override
    public LoggingEventBuilder addArgument(Supplier<?> objectSupplier) {
        this.loggingEvent.addArgument(objectSupplier.get());
        return this;
    }
Add a marker to the current logging event being built.
<p>
It is possible to add multiple markers to the same logging event.

@param marker the marker to add
slf4j-api/src/main/java/org/slf4j/spi/DefaultLoggingEventBuilder.java