code: async def delete(self, device, remove=True):
          
          device = self._find_device(device)
          if not self.is_handleable(device) or not device.is_loop:
              self._log.warn(_('not deleting {0}: unhandled device', device))
              return False
          if remove:
              await self.auto_remove(device, force=True)
          self._log.debug(_('deleting {0}', device))
          await device.delete()
          self._log.info(_('deleted {0}', device))
          return True
docs: Detach the loop device.
  
          :param device: device object, block device path or mount path
          :param bool remove: whether to unmount the partition etc.
          :returns: whether the loop device is deleted