code: def create(cls, paas_info, vhost, alter_zone, background):
          
          if not background and not cls.intty():
              background = True
  
          params = {'paas_id': paas_info['id'],
                    'vhost': vhost,
                    'zone_alter': alter_zone}
          result = cls.call('paas.vhost.create', params, dry_run=True)
  
          if background:
              return result
  
          cls.echo('Creating a new vhost.')
          cls.display_progress(result)
          cls.echo('Your vhost %s has been created.' % vhost)
  
          return result
docs: Create a new vhost.