warnings.Verbose: Outputs any warnings recorded
Description
  Outputs any warnings recorded.
  The output is indented according to *enter()/*exit()
  calls.
Usage
"warnings"(this, title="Warnings detected:", reset=TRUE, ..., level=this$defaultLevel)
Arguments
title
A character string to be outputted before the warnings, if
   they exists. reset
(deprecated) Ignored.
...
Arguments passed to *cat(). level
A numeric value to be compared to the threshold. See Also
  For more information see Verbose.