code: def acl_show(self, msg, args):
          
          name = args[0] if len(args) > 0 else None
          if name is None:
              return "%s: The following ACLs are defined: %s" % (msg.user, ', '.join(self._acl.keys()))
  
          if name not in self._acl:
              return "Sorry, couldn't find an acl named '%s'" % name
  
          return '\n'.join([
              "%s: ACL '%s' is defined as follows:" % (msg.user, name),
              "allow: %s" % ', '.join(self._acl[name]['allow']),
              "deny: %s" % ', '.join(self._acl[name]['deny'])
          ])
docs: Show current allow and deny blocks for the given acl.