docs: def _parse_caps_bank(bank):
      '''
      Parse the <bank> element of the connection capabilities XML.
      '''
      result = {
          'id': int(bank.get('id')),
          'level': int(bank.get('level')),
          'type': bank.get('type'),
          'size': "{} {}".format(bank.get('size'), bank.get('unit')),
          'cpus': bank.get('cpus')
      }
  
      controls = []
      for control in bank.findall('control'):
          unit = control.get('unit')
          result_control = {
              'granularity': "{} {}".format(control.get('granularity'), unit),
              'type': control.get('type'),
              'maxAllocs': int(control.get('maxAllocs'))
          }
  
          minimum = control.get('min')
          if minimum:
              result_control['min'] = "{} {}".format(minimum, unit)
          controls.append(result_control)
      if controls:
          result['controls'] = controls
  
      return result