Formats and prints object if above threshold.
The output is indented according to *enter()/*exit()
calls.
# S3 method for Verbose
printf(this, fmtstr, ..., level=this$defaultLevel, timestamp=this$.timestamp)Objects to be passed to sprintf().
A character string specify the printf format string.
A numeric value to be compared to the threshold.
A logical indicating if output should start with a
timestamp, or not.
Returns nothing.
For more information see Verbose.