
  [;1m-spec dt_prepend_vm_tag_data(IoData) -> IoDataRet[0m
  [;1m                                when[0m
  [;1m                                    IoData :: iodata(),[0m
  [;1m                                    IoDataRet :: iodata().[0m

  The documentation for dt_prepend_vm_tag_data/1 is hidden. This
  probably means that it is internal and not to be used by other
  applications.
