code: def get_default_config(self):
          
          config = super(DiskUsageCollector, self).get_default_config()
          config.update({
              'path':     'iostat',
              'devices':  ('PhysicalDrive[0-9]+$' +
                           '|md[0-9]+$' +
                           '|sd[a-z]+[0-9]*$' +
                           '|x?vd[a-z]+[0-9]*$' +
                           '|disk[0-9]+$' +
                           '|dm\-[0-9]+$'),
              'sector_size': 512,
              'send_zero': False,
          })
          return config
docs: Returns the default collector settings