code: def create_vhost(self, vname):
          
          vname = quote(vname, '')
          path = Client.urls['vhosts_by_name'] % vname
          return self._call(path, 'PUT',
                                   headers=Client.json_headers)
docs: Creates a vhost on the server to house exchanges.
  
          :param string vname: The name to give to the vhost on the server
          :returns: boolean