docs: def cli(ctx, stage):
      """Show transformer rules"""
      if not ctx.bubble:
          ctx.say_yellow('There is no bubble present, ' +
                         'will not show any transformer rules')
          raise click.Abort()
  
      path = ctx.home + '/'
      RULES = None
      ctx.say('Stage:'+stage, verbosity=10)
      if stage in STAGES:
          if stage in ctx.cfg.CFG:
              STAGE = ctx.cfg.CFG[stage]
              ctx.say('Stage found:', stuff=STAGE,verbosity=100)
  
  
          if 'TRANSFORM' in STAGE:
              TRANSFORM = STAGE.TRANSFORM
              ctx.say('Transform found:', stuff=TRANSFORM, verbosity=100)
  
              if 'RULES' in TRANSFORM:
                  RULES = TRANSFORM.RULES
                  ctx.say('Rules found:', stuff=RULES, verbosity=100)
  
  
      if not RULES:
          ctx.say_red('There is no TRANSFORM.RULES in stage:' + stage)
          ctx.say_yellow('please check configuration in ' +
                         ctx.home + '/config/config.yaml')
          raise click.Abort()
  
      if type(RULES) == str and RULES.endswith('.bubble'):
          ctx.say('loading rules',verbosity=10)
          rules = get_bubble(ctx, path + RULES)
          rule_type = 'bubble'
          transformer = Transformer(rules=rules,
                                    rule_type=rule_type,
                                    bubble_path=path,
                                    verbose=ctx.get_verbose())
          rules = transformer._rules.get_rules()
          ctx.say('current number of rules:' + str(len(rules)),
                  verbosity=1)
          for r in rules:
              ctx.say('rule: ' + str(r), verbosity=1)
  
          ctx.gbc.say('rules: ', stuff=rules, verbosity=100)
      else:
          ctx.say('no rules!')
  
      return True