src/main/java/com/arpnetworking/steno/Logger.java
void log(
            final LogLevel level,
            @Nullable final String event,
            final List<String> dataKeys,
            final List<Object> dataValues,
            final List<String> contextKeys,
            final List<Object> contextValues,
            @Nullable final Throwable throwable) {
        level.log(
                getSlf4jLogger(),
                event,
                dataKeys,
                dataValues,
                contextKeys,
                contextValues,
                throwable);
    }
void log(
            final LogLevel level,
            @Nullable final String event,
            final List<String> dataKeys,
            final List<Object> dataValues,
            final List<String> contextKeys,
            final List<Object> contextValues,
            @Nullable final Throwable throwable) {
        level.log(
                getSlf4jLogger(),
                event,
                dataKeys,
                dataValues,
                contextKeys,
                contextValues,
                throwable);
    }
/* package private