code: def _normalize_to_unit(self, value, unit):
          
          if unit == 'ms':
              return value / 1000.0
          if unit == 'us':
              return value / 1000000.0
          if unit == 'KB':
              return value * 1024
          if unit == 'MB':
              return value * 1024 * 1024
          if unit == 'GB':
              return value * 1024 * 1024 * 1024
          if unit == 'TB':
              return value * 1024 * 1024 * 1024 * 1024
  
          return value
docs: Normalize the value to the unit returned.
  
          We use base-1000 for second-based units, and base-1024 for
          byte-based units. Sadly, the Nagios-Plugins specification doesn't
          disambiguate base-1000 (KB) and base-1024 (KiB).