slf4j-timber/src/main/java/org/slf4j/impl/TimberAndroidLoggerAdapter.java
public void warn(String format, Object arg1, Object arg2) {
        formatAndLog(Log.WARN, format, arg1, arg2);
    }
public void warn(String format, Object arg1, Object arg2) {
        formatAndLog(Log.WARN, format, arg1, arg2);
    }
public void warn ( String format , Object arg1 , Object arg2 ) { formatAndLog ( Log . WARN , format , arg1 , arg2 ) ; }
Log a message at the WARN level according to the specified format and
arguments.
<p>
<p>
This form avoids superfluous object creation when the logger is disabled
for the WARN level.
</p>

@param format the format string
@param arg1   the first argument
@param arg2   the second argument
Log a message at the WARN level according to the specified format and arguments . <p > <p > This form avoids superfluous object creation when the logger is disabled for the WARN level . < / p >