code: def upgrade(yes, dry_run, patches):
      
      patcher = _get_mongopatcher()
      if dry_run:
          patcher.discover_and_apply(directory=patches, dry_run=dry_run)
      else:
          if (yes or prompt_bool("Are you sure you want to alter %s" %
                                 green(patcher.db))):
              patcher.discover_and_apply(patches)
          else:
              raise SystemExit('You changed your mind, exiting...')
docs: Upgrade the datamodel by applying recusively the patches available