
  [;1m-type deprecated_time_unit() ::[0m
  [;1m          seconds | milli_seconds | micro_seconds | nano_seconds.[0m

  The [;;4mtime_unit/0[0m type also consist of the following deprecated
  symbolic time units:

   • [;;4mseconds[0m - Same as [;;4msecond[0m.

   • [;;4mmilli_seconds[0m - Same as [;;4mmillisecond[0m.

   • [;;4mmicro_seconds[0m - Same as [;;4mmicrosecond[0m.

   • [;;4mnano_seconds[0m - Same as [;;4mnanosecond[0m.
